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A Homozygous Interspecific F 2 Hybrid of Gossypium Barbadense ✕ Gossypium Hirsutum via the Semigametic Haploid Method 1
Author(s) -
Barrow J. R.,
Chaudhari H. K.
Publication year - 1976
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1976.0011183x001600030035x
Subject(s) - gossypium barbadense , biology , ploidy , gossypium , interspecific competition , gossypium hirsutum , doubled haploidy , interspecific hybridization , botany , malvaceae , gamete , heterosis , chromosome number , chromosome , hybrid , genetics , karyotype , gene , sperm
The semigametic phenomenon, which allows the production of haploid plants of any specific cotton breeding strain, was used to produce a haploid plant from a male gamete of an interspecific hybrid between Gossypium barbadense L. and Gossypium hirsutum L. The treatment of this haploid plant with colchicine, doubled the chromosome number, giving an immediate early generation pureline hybrid. This study demonstrates the usefulness of the semigametic phenomenon in producing a genetically stable breeding line in two generations from interspecific crosses.