this study was carried out to purify chitti bean cultivars. in the first year, 11 populations were collected from main chitti bean cultivating areas. based on some criteria such as higher yield, earlier maturity, more pods and tolerance to pests and diseases, single plants were selected. in the second year, seeds of each selected single plant as well as controls (talash and cos16) were managed ...

Methods for rapid inbreeding are desirable for reducing the time required to complete a breeding cycle and to increase genetic gain per year. Constitutive expression of FLOWERING LOCUS T (FT ) derived from Arabidopsis has previously been shown to reduce generation time in tobacco (Nicotiana tabacum L.) and other crop plants. Here, we used tobacco as a model system to investigate the utility of ...

Four flower-color phenotypes were observed in a population of musk thistle (Carduus tboermeri Weinm.). This plant has been commonly referred to as C. nutans L. The four phenotypes were: purple corolla and purple pollen, pink corolla and white pollen, white corolla and purple pollen, and white corolla and white pollen. In four generations, 177 self-pollinated individuals of these four phenotypes...

The objective of the present study was to estimate the level of inbreeding coefficient during inbreeding of the pedigree of random mating and selected populations of two distinct races of mulberry silkworm, Bombyx mori (Lepidoptera: Bombycidae), in the silkworm germplasm. The six generation data of the two races, namely multivoltine Pure Mysore and bivoltine NB4D2, were studied for inbreeding d...

ABSTRACT The angular leaf spot (ALS), caused by the fungus Pseudocercospora griseola, is one of most notable diseases common beans (Phaseolus vulgaris). effective strategy to control ALS quantitative disease resistance provided major and minor genes. One breeding for obtaining lines with durable P. griseola a recurrent selection that aims gradually assemble favorable alleles. In this study, wer...

Selection by inbreeding depression should favour mating biases that reduce the risk of fertilization by related mates. However, equivocal evidence for inbreeding avoidance questions the strength of inbreeding depression as a selective force in the evolution of mating biases. Lack of inbreeding avoidance can be because of low risk of inbreeding, variation in tolerance to inbreeding or high costs...

Endopeptidase allele Ep-D1c and DNA marker-assisted selection have been used for the incorporation of Lr19 + Lr24 leaf rust resistance genes combination into adapted commercial winter wheat cultivars. The first step was the transfer of the gene Lr19 from the donor cultivar Agrus into acceptor cultivars Simona and Lívia. The progenies possessing the null allele Ep-D1c linked to the gene Lr19 hav...