Inheritance, allelism, and morphological characterization of unifoliate mutations in common bean

Article Abstract:

Two unifoliate mutants of the common bean from the University of Idaho and University of Florida were characterized and compared based on inheritance studies, tests of allelism and limited morphological characterization. Both mutants were found to be under the control oof a single recessive gene with the two mutants allelic to one another but not to Uni-2, a dominant fertile unifoliate mutant with acute leaf apices. The Florida mutant is partially fertile with reversion to normal leaflet number at the higher nodes whereas the Idaho mutant is completely female-sterile and male-fertile with consistently strong expression of the unifoliate trait at higher nodes.

Leaves

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Complementation of nodulation genes of various mutants in common bean (Phaseolus vulgaris L.)

Article Abstract:

The complementation of mutations in the nodulation genes between two lines of mutant kidney beans was investigated using hybridization studies between the two germplasm sources. The two germplasm sources are the OAC Rico from the Harrow Research Center in Ontario and the RIZ30 line from the Centro International de Agricultura Tropical in Columbia. The nodulation characteristics of the first filial generation from the crosses are comparable to that found in native Phaseolus indicating the presence of complementation between the mutations studied.

Nitrogen-fixing plants

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Identification of RFLP markers linked to the unifoliate leaf, cauliflower head mutation of alfalfa

Article Abstract:

A combination of molecular biological techniques including restriction fragment length polymorphism (RFLP) were done to identify genetic markers responsible for the phenotypic expression of unifoliate leaf, cauliflower head mutant. It was found that RFLP loci linked to uni gene segregate for the trait. This initial finding will be useful for further genetic and molecular studies on genetic mutations in alfalfa.

Analysis, Usage, Gel electrophoresis, Genetic polymorphisms, Hybridization, Alfalfa, Cauliflower, Restriction enzymes, DNA, DNA restriction enzymes, Autoradiography

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