The shorter straw and the jumping genes: studying the mantled floral variation of oil palm
The mantled somaclonal variation of oil palm (Elaeis guineensis Jacq.) is morphologically similar to B-class MADS-box genes mutants: floral organs undergo a male-to-female homeotic conversion in flowers of both sexes. The negative economic consequences of this somaclonal variation on oil yields, as well as its variable incidence in clonal progenies, have made it necessary to understand the molecular mechanisms responsible for the variant phenotype. We have recently demonstrated that the splicing of EgDEF1, the APETALA3ortholog that is believed to be involved in the mantled floral phenotype, is significantly altered in variant flowers with respect to normal ones, resulting in the over-accumulation of a shorter, and potentially defective, transcript isoform (Jaligot et al., 2014). We are now attempting to determine through In Situ Hybridization whether these alternative transcripts could indeed compete within the same tissues. Also, because EgDEF1is inserted in a region of the oil palm genome that is rich in Transposable Elements (TEs), we are investigating the possibility that TEs might play a role in the onset of the variation in the course of the somatic embryogenesis process. (Texte intégral)
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dig-cirad-fr-5842482018-09-19T16:24:53Z http://agritrop.cirad.fr/584248/ http://agritrop.cirad.fr/584248/ The shorter straw and the jumping genes: studying the mantled floral variation of oil palm. Hooi Wei Yeng, Richaud Frédérique, Beulé Thierry, Agbessi Mawussé, Yen Yen Kwan, Collin Myriam, Syed Alwee Sharifah Shahrul Rabiah, Jaligot Estelle. 2015. . Aiguablava : WMCFD, Résumé, 1 p. Workshop in Molecular Mechanisms Controlling Flowering. 7, Aiguablava, Espagne, 7 Juin 2015/11 Juin 2015. Researchers The shorter straw and the jumping genes: studying the mantled floral variation of oil palm Hooi, Wei Yeng Richaud, Frédérique Beulé, Thierry Agbessi, Mawussé Yen Yen Kwan, Collin, Myriam Syed Alwee, Sharifah Shahrul Rabiah Jaligot, Estelle eng 2015 WMCFD F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale F02 - Multiplication végétative des plantes The mantled somaclonal variation of oil palm (Elaeis guineensis Jacq.) is morphologically similar to B-class MADS-box genes mutants: floral organs undergo a male-to-female homeotic conversion in flowers of both sexes. The negative economic consequences of this somaclonal variation on oil yields, as well as its variable incidence in clonal progenies, have made it necessary to understand the molecular mechanisms responsible for the variant phenotype. We have recently demonstrated that the splicing of EgDEF1, the APETALA3ortholog that is believed to be involved in the mantled floral phenotype, is significantly altered in variant flowers with respect to normal ones, resulting in the over-accumulation of a shorter, and potentially defective, transcript isoform (Jaligot et al., 2014). We are now attempting to determine through In Situ Hybridization whether these alternative transcripts could indeed compete within the same tissues. Also, because EgDEF1is inserted in a region of the oil palm genome that is rich in Transposable Elements (TEs), we are investigating the possibility that TEs might play a role in the onset of the variation in the course of the somatic embryogenesis process. (Texte intégral) conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/584248/1/HOOI-Abstract.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html |
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F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale F02 - Multiplication végétative des plantes F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale F02 - Multiplication végétative des plantes |
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F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale F02 - Multiplication végétative des plantes F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale F02 - Multiplication végétative des plantes Hooi, Wei Yeng Richaud, Frédérique Beulé, Thierry Agbessi, Mawussé Yen Yen Kwan, Collin, Myriam Syed Alwee, Sharifah Shahrul Rabiah Jaligot, Estelle The shorter straw and the jumping genes: studying the mantled floral variation of oil palm |
description |
The mantled somaclonal variation of oil palm (Elaeis guineensis Jacq.) is morphologically similar to B-class MADS-box genes mutants: floral organs undergo a male-to-female homeotic conversion in flowers of both sexes. The negative economic consequences of this somaclonal variation on oil yields, as well as its variable incidence in clonal progenies, have made it necessary to understand the molecular mechanisms responsible for the variant phenotype. We have recently demonstrated that the splicing of EgDEF1, the APETALA3ortholog that is believed to be involved in the mantled floral phenotype, is significantly altered in variant flowers with respect to normal ones, resulting in the over-accumulation of a shorter, and potentially defective, transcript isoform (Jaligot et al., 2014). We are now attempting to determine through In Situ Hybridization whether these alternative transcripts could indeed compete within the same tissues. Also, because EgDEF1is inserted in a region of the oil palm genome that is rich in Transposable Elements (TEs), we are investigating the possibility that TEs might play a role in the onset of the variation in the course of the somatic embryogenesis process. (Texte intégral) |
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F30 - Génétique et amélioration des plantes F60 - Physiologie et biochimie végétale F02 - Multiplication végétative des plantes |
author |
Hooi, Wei Yeng Richaud, Frédérique Beulé, Thierry Agbessi, Mawussé Yen Yen Kwan, Collin, Myriam Syed Alwee, Sharifah Shahrul Rabiah Jaligot, Estelle |
author_facet |
Hooi, Wei Yeng Richaud, Frédérique Beulé, Thierry Agbessi, Mawussé Yen Yen Kwan, Collin, Myriam Syed Alwee, Sharifah Shahrul Rabiah Jaligot, Estelle |
author_sort |
Hooi, Wei Yeng |
title |
The shorter straw and the jumping genes: studying the mantled floral variation of oil palm |
title_short |
The shorter straw and the jumping genes: studying the mantled floral variation of oil palm |
title_full |
The shorter straw and the jumping genes: studying the mantled floral variation of oil palm |
title_fullStr |
The shorter straw and the jumping genes: studying the mantled floral variation of oil palm |
title_full_unstemmed |
The shorter straw and the jumping genes: studying the mantled floral variation of oil palm |
title_sort |
shorter straw and the jumping genes: studying the mantled floral variation of oil palm |
publisher |
WMCFD |
url |
http://agritrop.cirad.fr/584248/ http://agritrop.cirad.fr/584248/1/HOOI-Abstract.pdf |
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