Off-types indicate natural outcrossing in five tropical forage legumes in Colombia

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dc.creatorMaass, Brigitte L.
dc.creatorTorres González, Alba Marina
dc.date1998
dc.date2017-08-28T12:45:53Z
dc.date2017-08-28T12:45:53Z
dc.date.accessioned2026-06-27T14:44:01Z
dc.descriptionFlower colour has been used as a simple morphological marker for genetic studies in many species, including legumes. In several tropical forage legumes, grown to evaluate their environmental adaptation or forseed increase, white-flowered plants were observed when the predominant flower colour was either yellow (Chamaecrista rotundifolia) or pink, lilac or purple (Centrosema virginianum, Codariocalyx gyroides, Desmodium heterocarpon and Galactia striata). Open pollination of these 5 species took place each at 1 of 4 sites in Colombia. Progeny from white-flowered plants were examined for flower colour to assess the proportion of off-types. This ranged on average from 4% for D. heterocarpon, 13% for both G. striata and Ch. rotundifolia, and 18% for Ce. virginianum, to 23% for Co. gyroides. Large differences were recorded among accessions of the same species, particularly in Ce. virginianum, where 4 of the accessions apparently produced autogamous offspring and the other 5 had high proportions of off-types, with a rate as high as 89%. Consequences of these results for germplasm collection, management and seed increase are discussed.
dc.identifierhttps://hdl.handle.net/10568/83259
dc.identifier.urihttp://hdl.handle.net/123456789/86826
dc.rightsOpen Access
dc.sourceMaass, Brigitte L.; Torres González, Alba Marina. 1998. Off-types indicate natural outcrossing in five tropical forage legumes in Colombia. Tropical Grasslands (Australia). 32(2):124-130.
dc.subjectfeed legumes
dc.subjectoutbreeding
dc.subjectcolour
dc.subjectflowers
dc.subjectleguminosas forrajeras
dc.subjectalogamia
dc.subjectcolor
dc.subjectflores
dc.titleOff-types indicate natural outcrossing in five tropical forage legumes in Colombia
dc.typeJournal Article

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