Pollen viability in a cultivated sunflower line, in the wild sunflower (Helianthus annuus L. ssp. texanus Heiser) and in its hybrid offspring
To evaluate possible developmental alterations in male gametes in the progeny of a sunflower inter-subspecific cross, pollen viability was studied in the cultivated line AN-3, the wild subspecies Helianthus annuus ssp. texanus, and in the hybrid from the cross CMS-AN-3 x H. annuus ssp. texanus. Amon...
| Hlavní autoři: | , , , |
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| Médium: | Online |
| Jazyk: | spa |
| Vydáno: |
Instituto de Ecología, A.C.
2006
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| On-line přístup: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1017 |
| _version_ | 1799771264781385728 |
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| author | Mendoza Villarreal, Rosalinda Reyes-Valdés, M. Humberto Espinosa Zapata, Carlos Villarreal Quintanilla, José Ángel |
| author_facet | Mendoza Villarreal, Rosalinda Reyes-Valdés, M. Humberto Espinosa Zapata, Carlos Villarreal Quintanilla, José Ángel |
| author_sort | Mendoza Villarreal, Rosalinda |
| collection | ABM |
| description | To evaluate possible developmental alterations in male gametes in the progeny of a sunflower inter-subspecific cross, pollen viability was studied in the cultivated line AN-3, the wild subspecies Helianthus annuus ssp. texanus, and in the hybrid from the cross CMS-AN-3 x H. annuus ssp. texanus. Among the hybrid plants, 95% of the individuals showed male fertility, thus indicating that the target wild populations contain male-sterility restoration alleles. Pollen viability did not show significant differences between the hybrid (91.5%), the cultivated (94.6%) and wild parents (95.2%). Results suggest that pollen viability is a trait maintained at high levels in wild and cultivated sunflower populations, and that there is no indication that sunflower domestication had an effect on this character. Regarding the use of wild material to improve the cultivated sunflower, pollen viability is not a barrier to use local populations (southeast of Coahuila) of H. annuus ssp. texanus to introduce wild genetic material to elite varieties. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1017 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2006 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-10172022-12-24T04:35:29Z Pollen viability in a cultivated sunflower line, in the wild sunflower (Helianthus annuus L. ssp. texanus Heiser) and in its hybrid offspring Viabilidad de polen en una línea de girasol cultivado, en el girasol silvestre (Helianthus annuus L. ssp. texanus Heiser) y en su descendencia híbrida Mendoza Villarreal, Rosalinda Reyes-Valdés, M. Humberto Espinosa Zapata, Carlos Villarreal Quintanilla, José Ángel Helianthus pollen viability sunflower girasol Helianthus viabilidad de polen To evaluate possible developmental alterations in male gametes in the progeny of a sunflower inter-subspecific cross, pollen viability was studied in the cultivated line AN-3, the wild subspecies Helianthus annuus ssp. texanus, and in the hybrid from the cross CMS-AN-3 x H. annuus ssp. texanus. Among the hybrid plants, 95% of the individuals showed male fertility, thus indicating that the target wild populations contain male-sterility restoration alleles. Pollen viability did not show significant differences between the hybrid (91.5%), the cultivated (94.6%) and wild parents (95.2%). Results suggest that pollen viability is a trait maintained at high levels in wild and cultivated sunflower populations, and that there is no indication that sunflower domestication had an effect on this character. Regarding the use of wild material to improve the cultivated sunflower, pollen viability is not a barrier to use local populations (southeast of Coahuila) of H. annuus ssp. texanus to introduce wild genetic material to elite varieties. Con el propósito de evaluar la posible alteración en el desarrollo de los gametos masculinos en la progenie de un cruzamiento entre dos subespecies de girasol, se estudió la viabilidad del polen en la línea cultivada AN-3, así como en la subespecie silvestre Helianthus annuus ssp. texanus y en la descendencia híbrida resultante del cruzamiento CMS-AN-3 x H. annuus ssp. texanus. De las plantas híbridas, 95% exhibieron fertilidad masculina, lo cual indica la presencia de alelos restauradores de la fertilidad en las poblaciones silvestres. La viabilidad de polen no mostró diferencias significativas entre el híbrido (91.5%), el progenitor cultivado (94.6%) y el silvestre (95.2%). Los resultados sugieren que la viabilidad de polen es una característica mantenida en niveles altos tanto en las poblaciones silvestres como las cultivadas, y que no hay indicios de que la domesticación del girasol haya influido sobre este carácter. En lo que concierne al uso de material silvestre para el mejoramiento genético del girasol cultivado, la viabilidad de polen en los híbridos no es una barrera para el uso de poblaciones locales (sureste de Coahuila) de H. annuus ssp. texanus en programas de cruzamientos con fines de introducción de caracteres de plantas espontáneas a las variedades élite. Instituto de Ecología, A.C. 2006-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf https://abm.ojs.inecol.mx/index.php/abm/article/view/1017 10.21829/abm76.2006.1017 Acta Botanica Mexicana; No. 76 (2006); 47-57 Acta Botanica Mexicana; Núm. 76 (2006); 47-57 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/1017/1178 Derechos de autor 2016 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Mendoza Villarreal, Rosalinda Reyes-Valdés, M. Humberto Espinosa Zapata, Carlos Villarreal Quintanilla, José Ángel Pollen viability in a cultivated sunflower line, in the wild sunflower (Helianthus annuus L. ssp. texanus Heiser) and in its hybrid offspring |
| title | Pollen viability in a cultivated sunflower line, in the wild sunflower (Helianthus annuus L. ssp. texanus Heiser) and in its hybrid offspring |
| title_full | Pollen viability in a cultivated sunflower line, in the wild sunflower (Helianthus annuus L. ssp. texanus Heiser) and in its hybrid offspring |
| title_fullStr | Pollen viability in a cultivated sunflower line, in the wild sunflower (Helianthus annuus L. ssp. texanus Heiser) and in its hybrid offspring |
| title_full_unstemmed | Pollen viability in a cultivated sunflower line, in the wild sunflower (Helianthus annuus L. ssp. texanus Heiser) and in its hybrid offspring |
| title_short | Pollen viability in a cultivated sunflower line, in the wild sunflower (Helianthus annuus L. ssp. texanus Heiser) and in its hybrid offspring |
| title_sort | pollen viability in a cultivated sunflower line, in the wild sunflower (helianthus annuus l. ssp. texanus heiser) and in its hybrid offspring |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1017 |
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