<?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>1870-3453</journal-id>
<journal-title><![CDATA[Revista mexicana de biodiversidad]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Biodiv.]]></abbrev-journal-title>
<issn>1870-3453</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-34532021000100341</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2021.92.3795</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Variación del estadio embrionario de Basiliscus vittatus (Squamata: Corytophanidae) en la oviposición]]></article-title>
<article-title xml:lang="en"><![CDATA[Variation of the embryonic stage of Basiliscus vittatus (Squamata: Corytophanidae) at oviposition]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Suárez-Varón]]></surname>
<given-names><![CDATA[Gabriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cortez]]></surname>
<given-names><![CDATA[Diego]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villagrán-Santa Cruz]]></surname>
<given-names><![CDATA[Maricela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Hernández]]></surname>
<given-names><![CDATA[Ulises]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Gallegos]]></surname>
<given-names><![CDATA[Oswaldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de México Facultad de Ciencias ]]></institution>
<addr-line><![CDATA[Toluca Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Centro de Ciencias Genómicas ]]></institution>
<addr-line><![CDATA[Cuernavaca Morelos]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Ciencias Departamento de Biología Comparada]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>92</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532021000100341&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532021000100341&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532021000100341&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En lagartijas ovíparas existe un intervalo frecuente en el desarrollo embrionario que alcanzan los huevos al momento de la oviposición entre el estadio 26 y 33. Dicha variación se ha relacionado con el origen de la viviparidad y permite la exploración de los efectos experimentales en el desarrollo embrionario después de la oviposición. Sin embargo, para la mayoría de las especies de lagartijas, el estadio embrionario en la oviposición es desconocido. El presente estudio detalla por primera vez en Corytophanidae el estadio embrionario en la oviposición de Basiliscus vittatus. Se colectaron hembras grávidas para obtener nidadas de reciente oviposición. De cada nidada, un huevo al azar fue disecado con la finalidad de determinar el estadio embrionario en la oviposición, además de medir variables morfométricas de la hembra y de los huevos. Los resultados muestran que en B. vittatus, las hembras ovipositan en 4 estadios embrionarios: 29 a 32; sin embargo, existe una preferencia por ovipositar en estadios embrionarios intermedios (estadios 30 y 31). De las diferentes variables registradas, el estadio en la oviposición solo se asocia con el largo máximo del huevo. El estadio en la oviposición de B. vittatus parece estar relacionado con factores fisiológicos y morfológicos de las hembras, así como por su estrategia de forrajeo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In oviparous lizards there is a frequent interval in the embryonic development that the eggs reach at the time of oviposition between stage 26 and 33. This variation has been related to the origin of viviparity and allowing the exploration of the effects of specific experimental conditions on embryonic development after oviposition. However, for most species of lizards the embryonic stage at oviposition is unknown. The present study details for first time in Corytophanidae the embryonic stage at oviposition of Basiliscus vittatus. Gravid females were collected to obtain recently oviposited clutches. From each clutch, a random egg was dissected in order to determine the embryonic stage at oviposition, in addition to measuring morphometric variables of the female and the eggs. Our results show that in B. vittatus, females oviposit in 4 embryonic stages: 29 to 32; however, there is a preference for ovipositing in intermediate embryonic stages (stages 30 and 31). Of the different variables recorded, the stages at oviposition are associated with the maximum length of the egg. The stage at oviposition of B. vittatus seems to be related to physiological and morphological factors of the females, as well as their foraging strategy.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Corytophanidae]]></kwd>
<kwd lng="es"><![CDATA[Desarrollo]]></kwd>
<kwd lng="es"><![CDATA[Estadio embrionario]]></kwd>
<kwd lng="es"><![CDATA[Oviposición]]></kwd>
<kwd lng="en"><![CDATA[Corytophanidae]]></kwd>
<kwd lng="en"><![CDATA[Development]]></kwd>
<kwd lng="en"><![CDATA[Embryonic stage]]></kwd>
<kwd lng="en"><![CDATA[Oviposition]]></kwd>
</kwd-group>
</article-meta>
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