Barrières pré-zygotiques chez les hybrides entre formes sauvages du niébé, Vigna unguilata (L.) Walp.
Hybrids pre-zygotic barriers between wild forms of cowpea. The wild forms of cowpea, Vigna unguiculata, constitute an important gene pool insufficiently exploited for the improvement of the cultivated form. In order to promote the use of these wild forms in the genetic improvement programmes, we und...
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| Format: | Article |
| Language: | English |
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Presses Agronomiques de Gembloux
2006-01-01
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| Series: | Biotechnologie, Agronomie, Société et Environnement |
| Subjects: | |
| Online Access: | http://www.pressesagro.be/base/text/v10n1/33.pdf |
| _version_ | 1818063798953574400 |
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| author | Baudoin JP. Pasquet RS. Toussaint A. Kouadio D. |
| author_facet | Baudoin JP. Pasquet RS. Toussaint A. Kouadio D. |
| author_sort | Baudoin JP. |
| collection | DOAJ |
| description | Hybrids pre-zygotic barriers between wild forms of cowpea. The wild forms of cowpea, Vigna unguiculata, constitute an important gene pool insufficiently exploited for the improvement of the cultivated form. In order to promote the use of these wild forms in the genetic improvement programmes, we undertook to understand the various incompatibility reactions which appear in the crosses between wild forms. Efforts were concentrated to understand the incompatibility barriers in the hybridizations between subsp. baoulensis NI 933 and the other wild forms of V. unguiculata. Thanks to the use of the aniline blue fluorescence, we observed a high frequency of pre-zygotic barriers. They appear in three sites, i.e. the higher and lower third of the style, and within the ovary. However, these incompatibility barriers are not absolute. Indeed, in our hybridizations, more than 4% of the ovules were fertilized in the various studied combinations. |
| first_indexed | 2024-12-10T14:25:50Z |
| format | Article |
| id | doaj.art-3cad7a7301dc47df9738a6709999a708 |
| institution | Directory Open Access Journal |
| issn | 1370-6233 1780-4507 |
| language | English |
| last_indexed | 2024-12-10T14:25:50Z |
| publishDate | 2006-01-01 |
| publisher | Presses Agronomiques de Gembloux |
| record_format | Article |
| series | Biotechnologie, Agronomie, Société et Environnement |
| spelling | doaj.art-3cad7a7301dc47df9738a6709999a7082022-12-22T01:45:05ZengPresses Agronomiques de GemblouxBiotechnologie, Agronomie, Société et Environnement1370-62331780-45072006-01-011013341Barrières pré-zygotiques chez les hybrides entre formes sauvages du niébé, Vigna unguilata (L.) Walp.Baudoin JP.Pasquet RS.Toussaint A.Kouadio D.Hybrids pre-zygotic barriers between wild forms of cowpea. The wild forms of cowpea, Vigna unguiculata, constitute an important gene pool insufficiently exploited for the improvement of the cultivated form. In order to promote the use of these wild forms in the genetic improvement programmes, we undertook to understand the various incompatibility reactions which appear in the crosses between wild forms. Efforts were concentrated to understand the incompatibility barriers in the hybridizations between subsp. baoulensis NI 933 and the other wild forms of V. unguiculata. Thanks to the use of the aniline blue fluorescence, we observed a high frequency of pre-zygotic barriers. They appear in three sites, i.e. the higher and lower third of the style, and within the ovary. However, these incompatibility barriers are not absolute. Indeed, in our hybridizations, more than 4% of the ovules were fertilized in the various studied combinations.http://www.pressesagro.be/base/text/v10n1/33.pdfVigna unguiculatawild formsintraspecific hybridizationpollen germinationpollen tube growthbarriers of pre-zygotic incompatibility |
| spellingShingle | Baudoin JP. Pasquet RS. Toussaint A. Kouadio D. Barrières pré-zygotiques chez les hybrides entre formes sauvages du niébé, Vigna unguilata (L.) Walp. Biotechnologie, Agronomie, Société et Environnement Vigna unguiculata wild forms intraspecific hybridization pollen germination pollen tube growth barriers of pre-zygotic incompatibility |
| title | Barrières pré-zygotiques chez les hybrides entre formes sauvages du niébé, Vigna unguilata (L.) Walp. |
| title_full | Barrières pré-zygotiques chez les hybrides entre formes sauvages du niébé, Vigna unguilata (L.) Walp. |
| title_fullStr | Barrières pré-zygotiques chez les hybrides entre formes sauvages du niébé, Vigna unguilata (L.) Walp. |
| title_full_unstemmed | Barrières pré-zygotiques chez les hybrides entre formes sauvages du niébé, Vigna unguilata (L.) Walp. |
| title_short | Barrières pré-zygotiques chez les hybrides entre formes sauvages du niébé, Vigna unguilata (L.) Walp. |
| title_sort | barrieres pre zygotiques chez les hybrides entre formes sauvages du niebe vigna unguilata l walp |
| topic | Vigna unguiculata wild forms intraspecific hybridization pollen germination pollen tube growth barriers of pre-zygotic incompatibility |
| url | http://www.pressesagro.be/base/text/v10n1/33.pdf |
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