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Gene Arrangement in the Duplicate Linkage Groups V and IX: Nectariless, Glandless, and Withering Bract in Cotton 1
Author(s) -
Kohel R. J.
Publication year - 1979
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/cropsci1979.0011183x001900060021x
Subject(s) - biology , bract , gossypium hirsutum , genome , linkage (software) , genetics , gene , gossypium , genetic linkage , microbiology and biotechnology , botany , inflorescence
Genetic investigations of Upland cotton, Gossypium hirsutum L., have established that the genes controlling the expression of nectariless ( ne 1 , ne 2 ), glandless ( gl 2 , gl 3 ), and withering bract ( bw 1 , bw 2 ) are at duplicate loci in homeologous chromosomes. Three‐point linkage tests in these homeologous linkage groups indicate that the gene order was probably Gl 2 ‐ Bw 1 ‐ Ne 1 in the A genome and Bw 2 ‐ Gl 3 ‐ Ne 2 in the D genome. However, recombination percentages were not significantly different between Bw 1 ‐ Ne 1 and Gl 2 ‐Ne 1 in the A genome, and between Bw 2 ‐ Ne 2 in the D genome.