<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2448-6760</journal-id>
<journal-title><![CDATA[Veterinaria México OA]]></journal-title>
<abbrev-journal-title><![CDATA[Veterinaria México OA]]></abbrev-journal-title>
<issn>2448-6760</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Medicina Veterinaria y Zootecnia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-67602015000400001</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Africanización de colonias de abejas melíferas ( Apis mellifera ) en tres regiones climáticas del norte de México]]></article-title>
<article-title xml:lang="en"><![CDATA[Africanization of honey bees ( Apis mellifera ) in three climatic regions of northern Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina Flores]]></surname>
<given-names><![CDATA[Carlos A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guzmán Novoa]]></surname>
<given-names><![CDATA[Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hamiduzzaman]]></surname>
<given-names><![CDATA[M. M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilera Soto]]></surname>
<given-names><![CDATA[Jairo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Carlos]]></surname>
<given-names><![CDATA[Marco A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Zacatecas Unidad Académica de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[ Zacatecas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Guelph School of Environmental Sciences ]]></institution>
<addr-line><![CDATA[Guelph ON]]></addr-line>
<country>Canada</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<volume>2</volume>
<numero>4</numero>
<fpage>1</fpage>
<lpage>9</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-67602015000400001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-67602015000400001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-67602015000400001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El propósito de esta investigación fue analizar el proceso de africanización de colonias manejadas de abejas (Apis mellifera) en tres ecoambientes del nor te de México para determinar la frecuencia de fenotipos y genotipos africanos y europeos. Las colonias (n = 151) muestreadas se distribuyen en tres regiones del estado de Zacatecas: 1) semiseca templada, 2) semiseca semicálida y 3) subhúmeda templada. El tipo de ADNmt se determinó mediante PCR-RFLP y el morfotipo, por medio del Sistema Rápido de Identificación de Abejas Africanizadas (FABIS, por sus siglas en inglés). Del total de colonias muestreadas en todas las regiones, los análisis de ADNmt revelaron una fre cuencia significativamente más elevada de linaje materno europeo (77.5%) que de africano (22.5%; P &lt; 0.0001). Los análisis morfométricos clasificaron al 47% de las colonias como europeas y al 42.4% como africanizadas. La frecuencia de colonias con mitotipo y morfotipo o africano o europeo varió significativamente (P &lt; 0.05) en cada región y sugiere un mayor grado de africanización en la región semiseca semicálida. En cambio, la frecuencia más elevada de las colonias con mitotipo y morfotipo europeo se presentó en la región semiseca templada. Los resultados sugieren que el ambiente afecta el grado de africanización de las colonias de abejas en el norte de México. Las colonias establecidas en zonas de mayor altitud y con climas más templados tendrán genotipos más europeos que las colonias establecidas en regiones tropicales. Se discuten diversas hipótesis para explicar estos resultados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: This study was conducted to analyze the process of Africanization of managed honey bee (Apis mellifera) colonies by determining the frequency of African and European morphotypes and mitotypes (mtDNA) in three different ecological environments of northern Mexico. Colonies (n= 151) were sampled in 1) temperate semi-dry; 2) semi-warm semi-dry; and 3) temperate sub-humid regions in the state of Zacatecas. The mtDNA type was determined by PCR-RFLP and the morphotype by the Fast Africanized Bee Identification System (FABIS). Out of all the colonies sampled in all areas, the mtDNA analysis showed a significantly higher frequency of European maternal lineage (77.5%) than of African maternal lineage (22.5%; P &lt;0.0001). The morphometric analysis classified 47% of the colonies as European and 42.4% of them as Africanized. The frequency of colonies with African or European mitotypes and morphotypes varied significantly between regions (P &lt;0.05) with results indicating a higher degree of Africanization in the semi-warm semi-dry region. Conversely, the highest frequency of colonies with the European morphotype and mitotype occurred in the temperate semi-dry region. These results suggest that the environment affects the degree of Africanization of honey bee colonies in northern Mexico. Colonies established at higher altitudes and in more temperate climates have more European genotypes than colonies established in tropical regions. Several hypotheses are discussed to explain these results.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Apis mellifera]]></kwd>
<kwd lng="es"><![CDATA[Africanización]]></kwd>
<kwd lng="es"><![CDATA[Morfotipo]]></kwd>
<kwd lng="es"><![CDATA[Mitotipo]]></kwd>
<kwd lng="es"><![CDATA[Clima]]></kwd>
<kwd lng="es"><![CDATA[Zacatecas]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="en"><![CDATA[Apis mellifera]]></kwd>
<kwd lng="en"><![CDATA[Africanization]]></kwd>
<kwd lng="en"><![CDATA[Morphotype]]></kwd>
<kwd lng="en"><![CDATA[Mitotype]]></kwd>
<kwd lng="en"><![CDATA[Climate]]></kwd>
<kwd lng="en"><![CDATA[Zacatecas]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The Africanization of honey bees (Apis mellifera L.) of the Yucatan: a study of a massive hybridization event across time]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Clarke]]></surname>
<given-names><![CDATA[KE]]></given-names>
</name>
<name>
<surname><![CDATA[Rinderer]]></surname>
<given-names><![CDATA[TE]]></given-names>
</name>
<name>
<surname><![CDATA[Franck]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Quezada-Euán]]></surname>
<given-names><![CDATA[JJG]]></given-names>
</name>
<name>
<surname><![CDATA[Oldroyd]]></surname>
<given-names><![CDATA[BP]]></given-names>
</name>
</person-group>
<source><![CDATA[Evolution]]></source>
<year>2002</year>
<volume>56</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>1462-74</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Nest usurpation, supersedure and colony failure contribute to Africanization of commercially managed European honey bees in Venezuela]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Danka]]></surname>
<given-names><![CDATA[RG]]></given-names>
</name>
<name>
<surname><![CDATA[Hellmich]]></surname>
<given-names><![CDATA[RL]]></given-names>
</name>
<name>
<surname><![CDATA[Rinderer]]></surname>
<given-names><![CDATA[TE]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Apicultural Research]]></source>
<year>1992</year>
<volume>31</volume>
<numero>3-4</numero>
<issue>3-4</issue>
<page-range>119-23</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Stock composition of northern neotropical honey bees: mitotype and morphotype diversity in Mexico (Hymenoptera: Apidae)]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Domínguez-Ayala]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Moo-Valle]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[May-Itzá]]></surname>
<given-names><![CDATA[WDJ]]></given-names>
</name>
<name>
<surname><![CDATA[Medina-Peralta]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Quezada-Euán]]></surname>
<given-names><![CDATA[JJG]]></given-names>
</name>
</person-group>
<source><![CDATA[Apidologie]]></source>
<year>2015</year>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Honey production by european, africanized and hybrid honey bee (Apis mellifera) colonies in Mexico]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guzmán-Novoa]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Uribe R]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
</person-group>
<source><![CDATA[American Bee Journal]]></source>
<year>2004</year>
<volume>144</volume>
<page-range>318-20</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[History, colonization and impact of the africanized honey bee in Mexico]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guzmán-Novoa]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Correa-Benítez]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Guzmán]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Espinosa]]></surname>
<given-names><![CDATA[LG]]></given-names>
</name>
</person-group>
<source><![CDATA[Veterinaria México]]></source>
<year>2011</year>
<volume>42</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>149-78</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[DNA studies reveal processes involved in the spread of New World African Honeybees]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hall]]></surname>
<given-names><![CDATA[GH]]></given-names>
</name>
</person-group>
<source><![CDATA[Florida Entomologist]]></source>
<year>1992</year>
<volume>75</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>51-9</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="">
<collab>[INEGI] Instituto Nacional de Estadística Geografía e Informática</collab>
<source><![CDATA[Municipios de Zacatecas]]></source>
<year>2005</year>
<page-range>234-5</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The history of the introduction of African bees to Brazil]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kerr]]></surname>
<given-names><![CDATA[WE]]></given-names>
</name>
</person-group>
<source><![CDATA[South African Bee Journal]]></source>
<year>1967</year>
<volume>39</volume>
<page-range>3-5</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Improved polymerase chain reaction-based mitochondrial genotype assay for identification of the africanized honey bee (Hymenoptera: Apidae)]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nielsen]]></surname>
<given-names><![CDATA[DI]]></given-names>
</name>
<name>
<surname><![CDATA[Ebert]]></surname>
<given-names><![CDATA[PR]]></given-names>
</name>
<name>
<surname><![CDATA[Page]]></surname>
<given-names><![CDATA[RE]]></given-names>
</name>
<name>
<surname><![CDATA[Hunt]]></surname>
<given-names><![CDATA[GJ]]></given-names>
</name>
<name>
<surname><![CDATA[Guzmán-Novoa]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<source><![CDATA[Annals of the Entomological Society of America]]></source>
<year>2000</year>
<volume>93</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-6</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The spread of a fierce African bee in Brazil]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nogueira-Neto]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<source><![CDATA[Bee World]]></source>
<year>1964</year>
<volume>45</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>119-21</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Otis]]></surname>
<given-names><![CDATA[GW]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Population biology of the africanized honey bee]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Spivak]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Fletcher]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Breed]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[The African Honey Bee]]></source>
<year>1991</year>
<page-range>213-34</page-range><publisher-loc><![CDATA[Boulder, Colorado, USA ]]></publisher-loc>
<publisher-name><![CDATA[Westview Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Africanization in the United States: replacement of feral european honey bees (Apis mellifera L.) by an african hybrid swarm]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[AM]]></given-names>
</name>
<name>
<surname><![CDATA[Rubink]]></surname>
<given-names><![CDATA[WL]]></given-names>
</name>
<name>
<surname><![CDATA[Patton]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
<name>
<surname><![CDATA[Coulson]]></surname>
<given-names><![CDATA[RN]]></given-names>
</name>
<name>
<surname><![CDATA[Johnston]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
</person-group>
<source><![CDATA[Genetics]]></source>
<year>2005</year>
<volume>170</volume>
<page-range>1653-65</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Hybridization between european and africanized honeybees in tropical Yucatan, Mexico. II. Morphometric, allozymic and mitochondrial DNA variability in feral colonies]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quezada-Euán]]></surname>
<given-names><![CDATA[JJG]]></given-names>
</name>
</person-group>
<source><![CDATA[Apidologie]]></source>
<year>2000</year>
<volume>31</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>443-54</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[A retrospective history of the expansion of africanized honeybees in México]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quezada-Euán]]></surname>
<given-names><![CDATA[JJG]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Apicultural Research and Bee World]]></source>
<year>2007</year>
<volume>46</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>295-300</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Hybridization between european and africanized honeybees (Apis mellifera L.) in tropical Yucatan, Mexico. I. Morphometric changes in feral and managed colonies]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quezada-Euán]]></surname>
<given-names><![CDATA[JJG]]></given-names>
</name>
<name>
<surname><![CDATA[Medina]]></surname>
<given-names><![CDATA[LM]]></given-names>
</name>
</person-group>
<source><![CDATA[Apidologie]]></source>
<year>1998</year>
<volume>29</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>555-68</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rinderer]]></surname>
<given-names><![CDATA[TE]]></given-names>
</name>
<name>
<surname><![CDATA[Hellmich]]></surname>
<given-names><![CDATA[RL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The processes of africanization]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Spivak]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Fletcher]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Breed]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[The African Honey Bee]]></source>
<year>1991</year>
<page-range>373-98</page-range><publisher-loc><![CDATA[Boulder, Colorado, USA ]]></publisher-loc>
<publisher-name><![CDATA[Westview Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Africanized bees in the U.S.]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rinderer]]></surname>
<given-names><![CDATA[TE]]></given-names>
</name>
<name>
<surname><![CDATA[Oldroyd]]></surname>
<given-names><![CDATA[BP]]></given-names>
</name>
<name>
<surname><![CDATA[Sheppard]]></surname>
<given-names><![CDATA[WS]]></given-names>
</name>
</person-group>
<source><![CDATA[Scientific American]]></source>
<year>1993</year>
<volume>269</volume>
<page-range>52-8</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="">
<collab>[SAGARPA] Secretaría de Agricultura, Ganadería, Desarrollo Rural, Pesca y Alimentación. Servicio de información y estadística agroalimentaria (SIAP)</collab>
<source><![CDATA[]]></source>
<year>2005</year>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<collab>SAS Institute</collab>
<source><![CDATA[Statistical software Ver. 9.0.]]></source>
<year>2002</year>
<publisher-name><![CDATA[Cary, North Carolina, USA]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The African Honey Bee : factors contributing to a successful biological invasion]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schneider]]></surname>
<given-names><![CDATA[SS]]></given-names>
</name>
<name>
<surname><![CDATA[DeGrandi-Hoffman]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[DR]]></given-names>
</name>
</person-group>
<source><![CDATA[Annual Review Entomology]]></source>
<year>2004</year>
<volume>49</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>351-76</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[African bees in the Americas: insights from biogeography and genetics]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[DR]]></given-names>
</name>
</person-group>
<source><![CDATA[Trends in Ecology and Evolution]]></source>
<year>1991</year>
<volume>6</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>17-21</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Fast Africanized Bee Identification System (FABIS) Manual]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sylvester]]></surname>
<given-names><![CDATA[HA]]></given-names>
</name>
<name>
<surname><![CDATA[Rinderer]]></surname>
<given-names><![CDATA[TE]]></given-names>
</name>
</person-group>
<source><![CDATA[American Bee Journal]]></source>
<year>1987</year>
<volume>127</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>511-6</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The past and possible future spread of africanized honey bees in the Americas]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[OR]]></given-names>
</name>
</person-group>
<source><![CDATA[Bee World]]></source>
<year>1977</year>
<volume>58</volume>
<page-range>19-30</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Efecto de la africanización sobre la producción de miel, comportamiento defensivo y tamaño de las abejas melíferas (Apis mellifera L.) en el altiplano mexicano]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Uribe R]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Guzmán-Novoa]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Hunt]]></surname>
<given-names><![CDATA[GJ]]></given-names>
</name>
<name>
<surname><![CDATA[Correa B]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Zozaya R]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
</person-group>
<source><![CDATA[Veterinaria México]]></source>
<year>2003</year>
<volume>34</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>47-59</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Thrice out of Africa: ancient and recent expansions of the honey bee, Apis mellifera]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Whitfield]]></surname>
<given-names><![CDATA[CW]]></given-names>
</name>
<name>
<surname><![CDATA[Behura]]></surname>
<given-names><![CDATA[SK]]></given-names>
</name>
<name>
<surname><![CDATA[Berlocher]]></surname>
<given-names><![CDATA[SH]]></given-names>
</name>
<name>
<surname><![CDATA[Clark]]></surname>
<given-names><![CDATA[AG]]></given-names>
</name>
<name>
<surname><![CDATA[Johnston]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
<name>
<surname><![CDATA[Sheppard]]></surname>
<given-names><![CDATA[WS]]></given-names>
</name>
<name>
<surname><![CDATA[Smith]]></surname>
<given-names><![CDATA[DR]]></given-names>
</name>
<name>
<surname><![CDATA[Suarez]]></surname>
<given-names><![CDATA[AV]]></given-names>
</name>
<name>
<surname><![CDATA[Weaver]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Tsutsui]]></surname>
<given-names><![CDATA[ND]]></given-names>
</name>
</person-group>
<source><![CDATA[Science]]></source>
<year>2006</year>
<volume>314</volume>
<numero>5799</numero>
<issue>5799</issue>
<page-range>642-5</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Frequency of european and african-derived morphotypes and haplotypes in colonies of honey bees (Apis mellifera) from NW México]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zamora]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Domínguez]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Alaníz-Gutiérrez]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Quezada-Euán]]></surname>
<given-names><![CDATA[JJG]]></given-names>
</name>
</person-group>
<source><![CDATA[Apidologie]]></source>
<year>2008</year>
<volume>39</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>388-96</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
