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	<title>Xbarc62 archivos | Trigueros</title>
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	<description>Mejoramiento de trigo en Latinoamérica.</description>
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	<title>Xbarc62 archivos | Trigueros</title>
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	<item>
		<title>ELF3-D1</title>
		<link>https://trigueros.info/elf3-d1/</link>
		
		<dc:creator><![CDATA[Ivan Muñoz]]></dc:creator>
		<pubDate>Sat, 25 Sep 2021 03:42:39 +0000</pubDate>
				<category><![CDATA[Adaptación]]></category>
		<category><![CDATA[Marcadores]]></category>
		<category><![CDATA[Precocidad]]></category>
		<category><![CDATA[Earlyness per se]]></category>
		<category><![CDATA[Eps-D1]]></category>
		<category><![CDATA[genes de precocidad]]></category>
		<category><![CDATA[Xbarc62]]></category>
		<guid isPermaLink="false">https://trigueros-ar.com/?p=5001</guid>

					<description><![CDATA[<p>MARCADORES ELF3-D1 Zikhali et al. (2016) demostraron que una deleción que incluye al gen TaELF-D1 es responsable del locus para precocidad intrínseca Eps-D1 y describieron herramientas moleculares para su utilización. El alelo ELF3-D1b con la presencia de la deleción acelera la floración, aunque su efecto depende de su interacción con otros genes (ej. Ppd) y [&#8230;]</p>
<p>La entrada <a href="https://trigueros.info/elf3-d1/">ELF3-D1</a> se publicó primero en <a href="https://trigueros.info">Trigueros</a>.</p>
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					<h1 class="elementor-heading-title elementor-size-default">MARCADORES</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-large">ELF3-D1</h2>				</div>
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									<p>Zikhali et al. (2016) demostraron que una deleción que incluye al gen TaELF-D1 es responsable del locus para precocidad intrínseca<em> Eps-D1</em> y describieron herramientas moleculares para su utilización. El alelo <em>ELF3-D1b</em> con la presencia de la deleción acelera la floración, aunque su efecto depende de su interacción con otros genes (ej. Ppd) y la temperatura (Ochagavía et al. 2019).</p>								</div>
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									<p>La secuencia <em>Xbarc62</em> está en el 3&#8242; UTR del gen <em>TaELF3-D1</em> y la repetición ATCT SSR detectada por <em>Xbarc62</em> se encuentra a 254 pb distal del codón de stop de <em>TaELF3-D1</em>. Los cebadores, no son específicos de 1DL como lo demuestra la producción de dos amplicones de PCR (129 y 118 bases). El alelo <em>ELF3-D1a</em> (funcional) no presenta la deleción y por lo tanto, cumple con su papel de represión. retasando el momento de la floración.</p>								</div>
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															<img decoding="async" width="549" height="89" src="https://trigueros.info/wp-content/uploads/2026/02/Xbarc62.webp" class="attachment-large size-large wp-image-11284" alt="Diagrama de la secuencia XBarc62 del gen ELF3-D1 del trigo, se grafica la posición del marcador SSR cercano al extremo 3&apos;." srcset="https://trigueros.info/wp-content/uploads/2026/02/Xbarc62.webp 549w, https://trigueros.info/wp-content/uploads/2026/02/Xbarc62-300x49.webp 300w" sizes="(max-width: 549px) 100vw, 549px" />															</div>
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									<p><u>Figura 1.</u> Posición del SSR de Xbarc62 254 pb corriente abajo del codón stop en el UTR 3′ de Chinese Spring, tomado  de Zikhali et al., 2016.</p>								</div>
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															<img fetchpriority="high" decoding="async" width="1021" height="364" src="https://trigueros.info/wp-content/uploads/2026/02/ELF3_D1.webp" class="attachment-large size-large wp-image-11288" alt="Gel de electroforesis de poliacrilamida donde se observan bandas que marcan la presencia o ausencia de la deleción en el gen ELF-D1." srcset="https://trigueros.info/wp-content/uploads/2026/02/ELF3_D1.webp 1021w, https://trigueros.info/wp-content/uploads/2026/02/ELF3_D1-300x107.webp 300w, https://trigueros.info/wp-content/uploads/2026/02/ELF3_D1-768x274.webp 768w" sizes="(max-width: 1021px) 100vw, 1021px" />															</div>
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									<p>Los productos de PCR son visualizados en geles de acrilamida al 3% corridos en buffer TBE y teñidos con bromuro de etidio. La punta de flecha verde marca el fragmento de ADN de 129 pb perteneciente al alelo alto <em>ELF3-D1a</em> sin la deleción (calles 1, 4, 5, 6, 7, 9, 12, 13, 14, 17 y 18). La punta de flecha celeste marca la ausencia del fragmento de 129 pb perteneciente <em>ELF3-D1b </em>que presenta la deleción completa del gen <em>ELF3-D1</em> (calles 2, 3, 8, 10, 15 y 16).</p>								</div>
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									<p><strong>Primers:</strong></p>
<p>XBarc62F 5&#8242; TTG CCT GAGA CAT ACA TAC ACC TAA 3&#8242;</p>
<p>XBarc62R 5&#8242; GCC AGA ACA GAA TGA GTG CT 3&#8242;</p>
<p><strong>Concentración final de productos utilizados en las reacciones de PCR:</strong></p>
<p>1X Taq buffer (libre de Mg); dNTP: 200 µM c/u; MgCl<sub>2</sub>: 1.5 mM; primers: 0.2 µM c/u; Taq: 1 U; ADN genómico: 50-100 ng/reacción; Volumen final: 25 µl</p>
<p><strong>Programa de PCR</strong></p>
<p>Desnaturalización: 94 °C, 5 min; 40 ciclos de 94 °C 15 seg, 52 °C 15 seg, 72 °C 30 seg. Finalización con un paso de extensión: 72 °C 5 min.</p>
<p><strong>Caracterización de la Variabilidad Genética presente en Variedades Argentinas de Trigo.</strong></p>								</div>
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														<span class="data-table-header-text">ELF3-D1</span></th>
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														<span class="data-table-header-text">Variedad</span></th>
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													<p style="text-align: left">55CL, ACA 201, ACA 801, ACA 901, ACA 906, ACA 907, BAGUETTE 10, BAGUETTE 18, BAGUETTE 19, BAGUETTE 21, BAGUETTE 31, BAGUETTE 9, BAGUETTE P. 11, BIOINTA 1002, BIOINTA 1003, BIOINTA 1004, BIOINTA 1005, BIOINTA 1006, BIOINTA 2004, BIOINTA 3003, BIOINTA 3005, BUCK PUELCHE, DM THEMIX, INIA CENTINELA, INIA CHURRINCHE, INIA CONDOR, KLEIN 32, KLEIN CASTOR, KLEIN LEON, KLEIN NUTRIA, KLEIN RAYO, KLEIN TAURO, KLEIN ZORRO, LE 2330, LE 2331, LE 2333, MARCOS JUAREZ INTA, PROINTA ELITE, PROINTA GRANAR, SY 100, SY 200, SY 300</p>												</div></div>
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													<p style="text-align: left">ACA 223, ACA 320, ACA 903B, BAGUETTE 30, BARLETTA 77, BIOINTA 1000, BIOINTA 1001, BIOINTA 2001, BIOINTA 3004, BUCK 75 ANIVERSARIO, BUCK AGP FAST, BUCK BAQUEANO, BUCK BIGUA, BUCK BRASIL, BUCK CHACARERO, BUCK GUAPO, BUCK HUANCHEN, BUCK MALEVO, BUCK MANGRULLO, BUCK METEORO, BUCK NAPOSTA, BUCK NORTEÑO, BUCK PINGO, BUCK PRONTO, BUCK RANQUEL, BUCK TAITA, DM AREX, DM ATLAX, DM CRONOX, DM ONIX, INIA TORCAZA, KLEIN ATLAS, KLEIN BRUJO, KLEIN CACIQUE, KLEIN CAPRICORNIO, KLEIN CARPINCHO, KLEIN CENTAURO, KLEIN CHAJA, KLEIN DONENRIQUE, KLEIN ESCORPION, KLEIN GAVILAN, KLEIN GLADIADOR, KLEIN GUERRERO, KLEIN IMPACTO, KLEIN PANTERA, KLEIN PROTEO, KLEIN RENDIDOR, KLEIN TIGRE, KLEIN YARARA, LE 2341</p>												</div></div>
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									<p><strong>a</strong> = sin deleción (tardío); <strong>b</strong> = con deleción (precoz).</p><p><span style="text-decoration: underline;">Aclaración</span>: Los datos de la caracterización molecular aquí mostrados pueden contener variaciones según el origen de las semillas utilizadas, se recomienda utilizarlos de manera orientativa.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-large">podcast sobre ELF3-D1</h2>				</div>
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									<audio class="wp-audio-shortcode" id="audio-5001-1" preload="none" style="width: 100%;" controls="controls"><source type="audio/mpeg" src="https://trigueros.info/wp-content/uploads/2025/12/ELF3_El_Interruptor_Perdido_del_Trigo__Como_la_Ausencia_de_un_Gen_Ac.mp3?_=1" /><a href="https://trigueros.info/wp-content/uploads/2025/12/ELF3_El_Interruptor_Perdido_del_Trigo__Como_la_Ausencia_de_un_Gen_Ac.mp3">https://trigueros.info/wp-content/uploads/2025/12/ELF3_El_Interruptor_Perdido_del_Trigo__Como_la_Ausencia_de_un_Gen_Ac.mp3</a></audio><p>Podcast generado mediante Inteligencia Artificial NotebookLM de Google en base a la bibliografía propuesta en esta sección.</p>								</div>
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									<p><strong>Referencias</strong></p><ul><li>Ochagavía, H., Prieto, P., Zikhali, M., Griffiths, S., &amp; Slafer, G. A. (2019). Earliness Per Se by Temperature Interaction on Wheat Development. <em>Scientific Reports</em>, <em>9</em>(1). <a href="https://doi.org/10.1038/s41598-019-39201-6" target="_blank" rel="noopener">https://doi.org/10.1038/s41598-019-39201-6</a></li><li><p>Zikhali, M., Wingen, L. U., &amp; Griffiths, S. (2015). Delimitation of the Earliness per se D1(Eps-D1) flowering gene to a subtelomeric chromosomal deletion in bread wheat (Triticum aestivum). <em>Journal of Experimental Botany</em>, <em>67</em>(1), 287–299. <a href="https://doi.org/10.1093/jxb/erv458" target="_blank" rel="noopener">https://doi.org/10.1093/jxb/erv458</a></p></li></ul>								</div>
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		<p>La entrada <a href="https://trigueros.info/elf3-d1/">ELF3-D1</a> se publicó primero en <a href="https://trigueros.info">Trigueros</a>.</p>
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