<?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>1659-1321</journal-id>
<journal-title><![CDATA[Agronomía Mesoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Agron. Mesoam]]></abbrev-journal-title>
<issn>1659-1321</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1659-13212016000200217</article-id>
<article-id pub-id-type="doi">10.15517/am.v27i2.20695</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Diversidad genética de las variedades de arroz FLAR liberadas entre 2003-2014]]></article-title>
<article-title xml:lang="en"><![CDATA[Genetic diversity of the FLAR rice varieties released between 2003-2014]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Berrio-Orozco]]></surname>
<given-names><![CDATA[Luis Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Toro]]></surname>
<given-names><![CDATA[Édgar Alonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barona-Valencia]]></surname>
<given-names><![CDATA[Jairo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cuásquer-Sedano]]></surname>
<given-names><![CDATA[Juan Bosco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Fondo Latinoamericano de Arroz de Riego  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>CO</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Internacional de Agricultura Tropical  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>CO</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2016</year>
</pub-date>
<volume>27</volume>
<numero>2</numero>
<fpage>217</fpage>
<lpage>231</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1659-13212016000200217&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1659-13212016000200217&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1659-13212016000200217&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[ResumenEl objetivo de este trabajo fue determinar la base genética, el coeficiente de parentesco y la diversidad genética de las variedades de arroz liberadas entre el 2003 - 2014 en trece países miembros del Fondo Latinoamericano para Arroz de Riego (FLAR). Para ello, se analizaron las genealogías de 51 variedades, en el Centro Internacional de Agricultura Tropical (CIAT), Palmira, Colombia, durante los años 2014 y 2015. La variabilidad genética de las variedades estuvo representada por 120 ancestrales (2,4 ancestral/variedad); 33 de estos contribuyeron con el 83,9% de sus genes, de los cuales tres (ancestrales que originaron IR8) aportaron el 35,6% de sus genes. También se mostró que el coeficiente de parentesco (rxy) entre las diferentes variedades comerciales varió de 0,03 (muy poco relacionadas), hasta 0,99 (altamente relacionadas). El promedio de todas las 51 variedades fue de (rxy) 0,19. A nivel de variedades por país, se encontró que el promedio fue variable, el mínimo lo obtuvo Ecuador con 0,13, y el máximo fue de 0,31 para las variedades de Venezuela. El análisis de agrupamiento separó a los genotipos en catorce grupos distintos, donde existen materiales bastante relacionados y otros muy poco relacionados. Estos resultados muestran que se ha obtenido una ampliación de la base genética.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[AbstractThe objective of this study was to determine the genetic basis, the coefficient of kinship, and the genetic diversity of rice varieties released between 2003 and 2014, in thirteen member countries of the Latin America Fund for Irrigated Rice (FLAR). Pedigrees of o 51 rice varieties were analyzed at the International Center for Tropical Agriculture (CIAT), Palmira, Colombia between 2014-2015 The genetic variability of these varieties was represented by 120 ancestral or traditional cultivars (2.4 ancestral/variety); 33 of these contributed to the 83.9% of their genes, from which, three (ancestors with IR 8 origin), accounted for 35.6% of their genes. It was also shown that the coefficient of kinship (rxy) between different commercial varieties ranged from 0.03 (very unrelated), up to 0.99 (highly related). The average rxy of all 51 varieties was = 0.19. Regarding the varieties by country, the average rxy varied, the minimum was obtained by Ecuador 0.13 and the varieties from Venezuela obtained the maximum 0.31. The cluster analysis separated the genotypes in fourteen different groups based on highly related or very unrelated varieties. These results indicate that a broadening of the genetic base has been accomplished.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[genealogías]]></kwd>
<kwd lng="es"><![CDATA[cultivares tradicionales]]></kwd>
<kwd lng="es"><![CDATA[diversidad genética]]></kwd>
<kwd lng="es"><![CDATA[progenitores]]></kwd>
<kwd lng="es"><![CDATA[genes]]></kwd>
<kwd lng="en"><![CDATA[pedigrees]]></kwd>
<kwd lng="en"><![CDATA[traditional cultivars]]></kwd>
<kwd lng="en"><![CDATA[genetic diversity]]></kwd>
<kwd lng="en"><![CDATA[parents]]></kwd>
<kwd lng="en"><![CDATA[genes]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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