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- W3088396938 abstract "Most cultivated bananas are triploids. Diploid bananas are important to breeding programmes. We analyzed diploids to investigate the genetic organisation of the Musa species complex. Restriction fragment length polymorphism (RFLP) was used to analyze the genetic diversity of 160 diploid bananas: 70 seminiferous clones (wild bananas) of the species Musa acuminata, M. balbisiana and M. schizocarpa and 90 parthenocarpic clones (cultivars) were studied using 30 mapped single copy nuclear probes. Alleles specific to the 3 species studied were found. M. acuminata is the most polymorphic: its genetic structuration is discussed. M. schizocarpa appeared to be very similar to M. acuminata banksii, and M. balbisiana is more divergent. All the diploid parthenocarpic bananas contain M. acuminata alleles. This confirms the involvement of M. acuminata in the origin of parthenocarpy. Some cultivars were proved to be hybrids between M. acuminata and M. schizocarpa. (Author's abstract).[La majorite des bananiers cultives sont triploides. Importants en selection, les bananiers diploides sont analyses pour la comprehension de l'organisation genetique du complexe d'especes Musa. + l'aide de 30 sondes uniques nucleaires cartographiees, le polymorphisme de longueur des fragments de restriction (RFLP) est utilise pour analyser la diversite genetique de 160 varietes de bananiers diploides : 70 clones seminiferes (sauvages) appartenant aux especes Musa acuminata, M. balbisiana et M. schizocarpa et 90 varietes parthenocarpiques (cultivars). Des alleles specifiques a chacune des 3 especes ont ete trouves. M. acuminata est l'espece la plus polymorphe; sa structuration est discutee. Il est montre que M. schizocarpa est relativement proche de M. acuminata banksii, M. balbisiana se revelant beaucoup plus eloignee. Tous les diploides parthenocarpiques presentent des alleles M. acuminata, confirmant le role de cette espece dans l'origine de la parthenocarpie. L'existence de cultivars hybrides M. acuminata par M. schizocarpa est demontree. (Resume d'auteur).]" @default.
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- W3088396938 date "1994-01-01" @default.
- W3088396938 modified "2023-09-27" @default.
- W3088396938 title "Evaluation de la diversité génétique chez les bananiers diploïdes (Musa sp)[Evaluation of genetic diversity in diploid banana trees (Musa sp)]" @default.
- W3088396938 hasPublicationYear "1994" @default.
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