<?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>0120-9965</journal-id>
<journal-title><![CDATA[Agronomía Colombiana]]></journal-title>
<abbrev-journal-title><![CDATA[Agron. colomb.]]></abbrev-journal-title>
<issn>0120-9965</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia, Facultad de Agronomía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-99652018000300201</article-id>
<article-id pub-id-type="doi">10.15446/agron.colomb.v36n3.73108</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Fertility recovery of anther-derived haploid plants in Cape gooseberry (Physalis peruviana L.)]]></article-title>
<article-title xml:lang="es"><![CDATA[Restauración de la fertilidad de plantas haploïdes derivadas de anteras en uchuva (Physalis peruviana L.)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garcia-Arias]]></surname>
<given-names><![CDATA[Francy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Betancourt]]></surname>
<given-names><![CDATA[Erika]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Núñez]]></surname>
<given-names><![CDATA[Víctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria - AGROSAVIA  ]]></institution>
<addr-line><![CDATA[Bogotá Cundinamarca]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>36</volume>
<numero>3</numero>
<fpage>201</fpage>
<lpage>209</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-99652018000300201&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-99652018000300201&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-99652018000300201&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The cape gooseberry (Physalis peruviana L.) is one of the most important Colombian exotic fruits. Chromosome doubling of anther-derived plants is a key factor in the application of double haploid technology for the genetic improvement of crops. In the present study, axillary buds from four haploid cape gooseberry genotypes were used to evaluate artificial chromosome doubling induced by colchicine and its effects on ploidy level and pollen fertility. Three concentrations of colchicine (5, 10 and 15 mM) and three exposure times (2, 4 and 6 h) were used to determine the best treatment for the generation of fertile plants from axillary buds of haploid genotypes. The colchicine increased both the number of chromosomes, from 36 to 129, and the average chloroplasts in stomata guard cell, from 4.5 to 23.8. The optimal chromosome doubling of the haploids was obtained with the 5 mM colchicine solution and 2 h exposure time. This protocol produced chromosome doubling in over 60% of the regenerants of the four haploid genotypes, with a high level of fertility. Morphologically, the fertile mixoploid plants showed variation in the vegetative, flowering and fruit characteristics, as compared to the haploid plants.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La uchuva (Physalisperuviana L.) es una de las frutas exóticas de mayor importancia para Colombia. La duplicación cromosómica de plantas derivadas de cultivo de anteras es un factor clave en la aplicación de la tecnología doble haploide para el mejoramiento genético de los cultivos. En el presente estudio, se evaluó la duplicación cromosómica artificial inducida por colchicina en yemas axilares de cuatro genotipos haploides de uchuva y su efecto en el nivel de ploidía y la fertilidad polínica. Se emplearon tres concentraciones de colchicina (5, 10, 15 mM) y tres tiempos de exposición (2, 4 y 6 h) con el fin de determinar el mejor tratamiento para la generación de plantas fértiles a partir de yemas axilares de genotipos haploides. La colchicina incrementó el número de cromosomas entre 34 hasta 129 y el promedio de cloroplastos por células guarda entre 4.5 hasta 23.8. El doblamiento cromosómico óptimo de plantas haploides se obtuvo con la solución de colchicina 5 mM por 2 h. Este protocolo produjo doblamiento cromosómico en 60% de las plantas regeneradas obtenidas en los cuatro genotipos haploides, presentando un alto nivel de fertilidad. Morfológicamente, las plantas mixoploides fértiles presentaron variación en características vegetativas, de floración y en fruto, comparado con las plantas haploides.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[colchicine]]></kwd>
<kwd lng="en"><![CDATA[chloroplasts]]></kwd>
<kwd lng="en"><![CDATA[chromosomes]]></kwd>
<kwd lng="en"><![CDATA[mixoploidy]]></kwd>
<kwd lng="es"><![CDATA[colchicina]]></kwd>
<kwd lng="es"><![CDATA[cloroplastos]]></kwd>
<kwd lng="es"><![CDATA[cromosomas]]></kwd>
<kwd lng="es"><![CDATA[mixoploidía]]></kwd>
</kwd-group>
</article-meta>
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