Journal ArticleDOI
Interspecific hybridization between cultivated American species of the genus Phaseolus.
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TLDR
Effects of cytoplasmic constitution on both fertility and viability were shown in the F2 and backcross progenies of Phaseolus vulgaris and P. coccineus hybrids and it was concluded that distorted F2 segregations were due to differential loss of genes in sporogenesis and embryogenesis.Abstract:
Attempted interspecific hybridization between the speciesPhaseolus vulgaris, P. coccineus, P. acutifolius andP. lunatus has indicated that a close genetic relationship exists betweenP. vulgaris andP. coccineus. Viable hybrids of varying fertility can be made reciprocally between these species. Affinity is indicated withP. acutifolius by the formation of viable but sterile hybrids. Less affinity is apparent between these three species andP. lunatus with which they do not produce viable interspecific hybrids. Nevertheless morphological resemblances between the four species justify their retention within the same section of the genus.read more
Citations
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Journal ArticleDOI
Broadening the Genetic Base of Common Bean Cultivars
TL;DR: The origin, domestication, and organization of genetic diversity in Phaseolus beans is reviewed, production problems and traits deficient in the common bean (P. vulgaris L.) cultivars are highlighted, sources of useful gemplasm are cited, and progress achieved is reviewed.
Journal ArticleDOI
A molecular marker-based linkage map of Phaseolus vulgaris L.
TL;DR: The relatively small size of the genome makes this crop species a good candidate for the isolation of genes via chromosome walking techniques.
Journal ArticleDOI
Patterns of variation in cultivated common bean ( Phaseolus vulgaris , Fabaceae)
TL;DR: Most of the variation in the snap or stringless bean appears to be of relatively recent origin; it was greatest among cultivars from China, Europe, and the United States.
Journal ArticleDOI
Interspecific hybridization between common and tepary beans: increased hybrid embryo growth, fertility, and efficiency of hybridization through recurrent and congruity backcrossing.
TL;DR: The results suggest that congruity backcrossing can help to gradually reduce or overcome P. acutifolius hybridization barriers such as genotype incompatibility, early embryo abortion, hybrid sterility, and lower frequencies of hybridization.
Book ChapterDOI
Diversity in Phaseolus Species in Relation to the Common Bean
TL;DR: The genus was originally defined by Linnaeus for a natural group of American legumes within the Phaseolinae with the following main attributes: stipules not extending below insertion, presence of uncinate hairs, floral bracts persistent up to or past flowering, absence of extra floral nectaries, and style not extending beyond the stigma.
References
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Journal ArticleDOI
The crossing of beans (Phaseolus spp.)
TL;DR: In crossing, emasculation can be applied or not, in both cases some variations are possible, and which method can best be applied depends among other things on the inflorescences of the varieties to be combined.
Journal ArticleDOI
Interspecific Hybridization in the Genus Phaseolus 1
Salih Aziz Al-Yasiri,D. P. Coyne +1 more