نتایج جستجو برای: gossypium hirsutum
تعداد نتایج: 3804 فیلتر نتایج به سال:
Interspecific hybridization has contributed significantly to land diversity, species evolution, and crops’ domestication, including upland cotton, the cultivated form of Gossypium hirsutum. Being world’s most important fiber crop species, hirsutum belongs allotetraploid consisting six additional tetraploid species. The lint evolved once in diploid parent A-genome Gossypium’s history passed on d...
a cytogenetic study was performed on m4 generation of gamma irradiated lines of shirpan cultivar of tetraploid cotton (gossypium hirsutum l.). a significant difference was observed in cytogenetical characteristics such as the number and type of quadrivalents as well as percentage of cells showing abnormality among the irradiated and non irradiated lines. cytomixis and post- pachytene diffuse st...
BACKGROUND Cotton (Gossypium spp.) is a model system for the analysis of polyploidization. Although ascertaining the donor species of allotetraploid cotton has been intensively studied, sequence comparison of Gossypium chloroplast genomes is still of interest to understand the mechanisms underlining the evolution of Gossypium allotetraploids, while it is generally accepted that the parents were...
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