<?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>0121-3709</journal-id>
<journal-title><![CDATA[ORINOQUIA]]></journal-title>
<abbrev-journal-title><![CDATA[Orinoquia]]></abbrev-journal-title>
<issn>0121-3709</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Investigaciones de la Orinoquia Colombiana]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-37092020000100042</article-id>
<article-id pub-id-type="doi">10.22579/20112629.590</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Polimorfismos del gen del receptor para la hormona luteinizante (LHR - LHGCR) en folículos ováricos de vacas Romosinuano y Brahman ciclando]]></article-title>
<article-title xml:lang="en"><![CDATA[Luteinizing hormone choriogonadotropin receptor (LHGCR) gene polymorphism in ovarian follicles from cycling Romosinuano and Brahman cows]]></article-title>
<article-title xml:lang="pt"><![CDATA[Polimorfismos do gene receptor para o hormônio luteinizante (LHR - LHGCR) em folículos ováricos de vacas Romosinuano e Brahman no ciclo]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vejarano-Orjuela]]></surname>
<given-names><![CDATA[Álvaro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Vásquez]]></surname>
<given-names><![CDATA[Aureliano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rondón-Barragán]]></surname>
<given-names><![CDATA[Iang S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Suárez-Mesa]]></surname>
<given-names><![CDATA[Rafael A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Tolima Facultad de Medicina Veterinaria y Zootecnia Grupo de Investigación en Genética y Biotecnología de la Reproducción]]></institution>
<addr-line><![CDATA[Ibagué Tolima]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Colombia Facultad de Medicina Veterinaria y de Zootecnia ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad del Tolima Facultad de Medicina Veterinaria y Zootecnia Grupo de Investigación en Inmunobiología y Patogénesis]]></institution>
<addr-line><![CDATA[Ibagué Tolima]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad del Tolima Facultad de Medicina Veterinaria y Zootecnia Grupo de Investigación en Genética y Biotecnología de la Reproducción]]></institution>
<addr-line><![CDATA[Ibagué Tolima]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>24</volume>
<numero>1</numero>
<fpage>42</fpage>
<lpage>51</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-37092020000100042&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-37092020000100042&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-37092020000100042&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El gen del receptor para la hormona luteinizante (LHR-LHCGR) es un gen altamente conservado y su mRNA origina diferentes variantes por corte y empalme alternativo (splicing alternativo). En bovinos se han reportado variantes que traducen en proteína pero ésta no atraviesa la membrana celular; en humanos ante una deleción del exón 10 no hay respuesta a la acción de la LH, por lo tanto, es razonable asumir que las diferencias en la respuesta a la LH estén relacionadas con la expresión de los LHR. El objetivo de este trabajo fue comparar entre la raza criolla Colombiana Romosinuano y la raza Brahman los posibles polimorfismos del ARNm del gen como potenciales indicadores de fertilidad. Se tomaron 5 vacas ciclando de cada raza se extirpó el ovario que contenía un folículo preovulatorio, se retiró la pared folicular, se extrajo el RNA total y se sintetizó, amplificó, secuenció y comparó el ADNc contra secuencias ya reportadas, presentando una alta similitud. Se concluye que en estas razas la ausencia de variantes en la expresión del gen, estaría asociada a buen desempeño reproductivo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The luteinizing hormone (LH) choriogonadotropin receptor (LHCGR) gene is highly conserved and its mRNA causes variants by alternative splicing. Variants have been reported in cattle that translate into protein; however, this does not cross the cell membrane. Exon 10 deletion in humans does not trigger a response to the action of LH; it is therefore reasonable to assume that differences regarding response to LH are related to LHR expression. This work was aimed at comparing the Colombian creole Romosinuano breed to the Brahman breed regarding possible HCGR gene mRNA polymorphisms as potential fertility indicators. Five cycling cows were taken from each breed and the ovaries containing pre-ovulatory follicles were excised, the follicular wall was removed and total RNA extracted. The cDNA was synthesised, amplified, sequenced and compared to already reported sequences, great similarity being observed. It was concluded that the lack of variants regarding gene expression in these breeds would be associated with good reproductive performance.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo O gene do receptor para o hormônio luteinizante (LHR-LHCGR) é altamente conservado e seu mRNA origina diferentes variantes por splicing alternativo. Em bovinos, foram registradas variantes que se traduzem em proteína, mas esta não atravessa a membrana celular; em humanos quando há uma deleção do exon 10 não há nenhuma resposta à ação do LH, portanto, é possível que as diferenças na resposta ao LH estão relacionados à expressão do LHR. O objetivo deste estudo foi comparar os polimorfismos do mRNA do gene entre a raça crioula colombiana Romosinuano e a raça Brahman, como potenciais indicadores de fertilidade. Foram avaliadas cinco fêmeas de cada raça, retirou-se o ovário que continha um folículo pré-ovulatório, retirou-se a parede folicular, o RNA total foi extraído. Se sintetizou, amplificou, sequenciou e comparou o cDNA com sequencias já descritas, a qual presentou alta semelhança.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[bovinos criollo reproducción]]></kwd>
<kwd lng="es"><![CDATA[LHR-LHCGR]]></kwd>
<kwd lng="en"><![CDATA[bovine creole reproduction]]></kwd>
<kwd lng="en"><![CDATA[LHR-LHCGR]]></kwd>
<kwd lng="en"><![CDATA[fertility indicator.]]></kwd>
<kwd lng="pt"><![CDATA[reprodução de bovinos crioulos]]></kwd>
<kwd lng="pt"><![CDATA[LHR-LHCGR]]></kwd>
</kwd-group>
</article-meta>
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