<?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>0185-3309</journal-id>
<journal-title><![CDATA[Revista mexicana de fitopatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fitopatol]]></abbrev-journal-title>
<issn>0185-3309</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Fitopatología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-33092019000100009</article-id>
<article-id pub-id-type="doi">10.18781/r.mex.fit.1808-5</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comportamiento de accesiones nativas de Carica papaya inoculadas con PRSV-p mediante Aphis nerii]]></article-title>
<article-title xml:lang="en"><![CDATA[Performance of native accessions of Carica papaya inoculated with PRSV-p using Aphis nerii]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-Bautista]]></surname>
<given-names><![CDATA[Rodrigo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ávila-Reséndiz]]></surname>
<given-names><![CDATA[Catarino]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villanueva-Jiménez]]></surname>
<given-names><![CDATA[Juan A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nava-Díaz]]></surname>
<given-names><![CDATA[Cristian]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Becerra Leor]]></surname>
<given-names><![CDATA[Enrique Noé]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados Programa de Agroecosistemas Tropicales ]]></institution>
<addr-line><![CDATA[ Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados Programa de Fitosanidad-Fitopatología ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias Centro de Investigación Regional Golfo Centro ]]></institution>
<addr-line><![CDATA[ Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>37</volume>
<numero>1</numero>
<fpage>147</fpage>
<lpage>158</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-33092019000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-33092019000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-33092019000100009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Es posible que exista tolerancia al virus de la mancha anular del papayo (PRSV-p) en plantas nativas de Carica papaya. Se evaluó la respuesta de 13 accesiones (Acc) de papayo nativo y la variedad Maradol roja respecto a la incidencia y severidad del PRSV-p, inoculado con el insecto vector Aphis nerii, y su relación con el manejo de la planta observado durante su colecta. Las Acc se colectaron en estado silvestre, en traspatio o cultivadas. A los tres meses de edad se inocularon las plantas con el virus. Se evaluó semanalmente la incidencia y severidad en nueve ocasiones. Las Acc 203 y 205 mostraron el menor índice de severidad (1.0), seguidas de 147a y 60 (con 1.7), 94a (2.0) y 197a (2.2); las Acc 64a (2.5) y 150 (2.8) alcanzaron una severidad intermedia, seguidas de la 65 y 210b (con 3.3), y de 80, 169 y 188a (con 4.3). La var. Maradol roja presentó el mayor índice de severidad (4.8). La severidad promedio en las Acc colectadas en manejo silvestre fue significativamente menor (P = 0.032) que en Maradol roja, aunque no fue diferente en las Acc que provenían de manejo de plantaciones cultivadas o de traspatio. Es posible que entre las Acc silvestres se encuentren genes de tolerancia al PRSV-p.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Tolerance to the papaya ring spot virus (PRSV-p) may exist in native Carica papaya plants. The response of 13 native papaya accessions (Acc) and the commercial variety Red Maradol to the incidence and severity of the PRSV-p, inoculated with the vector insect Aphis nerii, and their relation with the observed plant management during their collection were evaluated. Acc were collected in the wild, in backyards or in production fields. Three months old-plants were infected with the virus. Disease incidence and severity were measured nine times weekly. Acc 203 and 205 showed the lowest disease severity index (1.0), followed by 147a and 60 (both with 1.7), 94a (2.0) and 197a (2.2); Acc 64a (2.5) and 150 (2.8) reached intermediate severity, followed by 65 and 210b (with 3.3), and by 80, 169 and 188a (with 4.3). Red Maradol variety showed the highest severity index (4.8). In relation to the management in which plants were collected, mean severity in Acc coming from the wild was significantly lower (P=0.032) than in Red Maradol, although they were not different from Acc coming from cultivated orchards or from backyards. It is possible that PRSV-p tolerance genes might be found in wild Acc.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[incidencia]]></kwd>
<kwd lng="es"><![CDATA[severidad]]></kwd>
<kwd lng="es"><![CDATA[tolerancia]]></kwd>
<kwd lng="es"><![CDATA[áfidos]]></kwd>
<kwd lng="en"><![CDATA[incidence]]></kwd>
<kwd lng="en"><![CDATA[severity]]></kwd>
<kwd lng="en"><![CDATA[tolerance]]></kwd>
<kwd lng="en"><![CDATA[aphids]]></kwd>
</kwd-group>
</article-meta>
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