<?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>0258-5936</journal-id>
<journal-title><![CDATA[Cultivos Tropicales]]></journal-title>
<abbrev-journal-title><![CDATA[cultrop]]></abbrev-journal-title>
<issn>0258-5936</issn>
<publisher>
<publisher-name><![CDATA[Ediciones INCA]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0258-59362024000300008</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Diversidad genotípica de cultivares cubanos de arroz obtenidos por el INCA en el período 1984-2020]]></article-title>
<article-title xml:lang="en"><![CDATA[Genotypic diversity of Cuban rice cultivars obtained by INCA in the 1984-2020 period]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-León]]></surname>
<given-names><![CDATA[Noraida de J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arteche Díaz]]></surname>
<given-names><![CDATA[Jossué]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Cepero]]></surname>
<given-names><![CDATA[María C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cristo-Valdés]]></surname>
<given-names><![CDATA[Elizabeth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez González]]></surname>
<given-names><![CDATA[Alba]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Ciencias Agrícolas  ]]></institution>
<addr-line><![CDATA[San José de las Lajas Mayabeque]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Estudios Aplicados al Desarrollo de la Energía Nuclear  ]]></institution>
<addr-line><![CDATA[Playa La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2024</year>
</pub-date>
<volume>45</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0258-59362024000300008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0258-59362024000300008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0258-59362024000300008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La diversidad genética puede verse como una fuente de opciones para cultivar alimentos diversos y nutritivos con menos recursos, adaptados a ambientes más hostiles y haciendo a los cultivos menos susceptibles a plagas; en este sentido, se llevó a cabo el presente trabajo que tuvo como objetivo determinar la diversidad genética, en base a su genealogía, de los 20 cultivares de arroz liberados por el Instituto Nacional de Ciencias Agrícolas de Cuba en el período 1984-2020. Mediante el programa CROPDIVER V. 20.01.19 fue elaborado el árbol genealógico combinado de todos los cultivares, fueron calculados sus coeficientes de parentesco, el porcentaje de participación y la contribución de cada ancestro en los cultivares obtenidos; además, se construyó el dendrograma utilizando el coeficiente de parentesco como estimado de similitud genética. Los resultados mostraron que el árbol genealógico de los 20 cultivares obtenidos lo forman 28 ancestros y 65 cultivares o líneas mejoradas, el mayor nivel de contribución recae sobre cuatro ancestros y 12 aportan los genes presentes en el citoplasma, por vía materna. Aunque, en su conjunto, el germoplasma obtenido es consanguíneo, el agrupamiento realizado diferenció tres grupos de cultivares que permiten establecer las similitudes genéticas entre ellos y hacer recomendaciones para su utilización en la producción arrocera cubana.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Genetic diversity can be seen as a source of options to grow diverse and nutritious foods with fewer resources, adapted to more hostile environments and making crops less susceptible to pests. In this sense, the present work was carried out with the objective of determining the genetic diversity, based on their genealogy, of the 20 rice cultivars released by the National Institute of Agricultural Sciences of Cuba in the 1984-2020 period. Through the CROPDIVER V. 01.20.19 program, the combined genealogical tree of all cultivars was elaborated, their parentage coefficients, the percentage of participation and the contribution of each ancestor in the cultivars obtained were calculated, in addition the dendrogram was constructed using parentage coefficient as genetic similarity estimate. The results showed that the genealogical tree, of the 20 cultivars obtained, is made up of 28 Ancestors and 65 cultivars or improved lines, the highest level of contribution falls on four ancestors and 12 contribute the genes present in the cytoplasm, through the maternal way. Although, as a whole, the obtained germplasm is consanguineous, the grouping carried out differentiated three groups of cultivars that allow establishing genetic similarities between them and making recommendations for their use in Cuban rice production.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Oryza sativa]]></kwd>
<kwd lng="es"><![CDATA[consanguinidad]]></kwd>
<kwd lng="es"><![CDATA[coeficiente de parentesco]]></kwd>
<kwd lng="en"><![CDATA[Oryza sativa]]></kwd>
<kwd lng="en"><![CDATA[consanguinity]]></kwd>
<kwd lng="en"><![CDATA[parentage coefficient]]></kwd>
</kwd-group>
</article-meta>
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