The Development and a Cytogenetic Study of Monosomics of Gossypium Hirsutum L.
M. F. SanamyanDepartment of Biology, Tashkent State University, Tashkent, Republic of UzbekistanJulia E. PetlyakovaDepartment of Biology, Tashkent State University, Tashkent, Republic of UzbekistanD. A. MusaevDepartment of Biology, Tashkent State University, Tashkent, Republic of Uzbekistan
ABI
Аннотация
Monosomics of cotton (Gossypium hirsutum L.) were obtained by irradiation of pollen by γ-rays and by irradiation of seeds by thermal neutrons. Many monosomics were derived directly from irradiation, but a number of monosomics were also recovered in the progeny of plants with translocations and of desynaptic plants. Only 28 primary monosomics showed normal pairing at metaphase-1 of meiosis. The others formec rare trivalents or additional univalents. Partial desynapsis was detected in some monosomics. The pollen fertility levels of monosomics are presented. New morphological characters were detected among the monosome plants of cotton.
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