Inheritance of the ps mutation in sugar beet
Tóm tắt
Genetic analysis of the inheritance of mutation ps in sugar beet was conducted. This mutation causes the meiotic abnormalities leading to the development of diploid pollen grains and influences several other morphological traits, namely, annual or biennial habit, stem color, and aggregation of pollen grains into tetrads, which are controlled by the genes B, Stc, and ap, respectively. The literature data on the linkage of genes B and Stc were confirmed; the obtained recombination coefficient between these genes amounts to 15.0 ± 3.6%. It was demonstrated that gene ap was inherited independently of genes B and Stc. Statistical analysis of the data shows that the mutation ps is recessive and is inherited independently of the mutation ap but in a linked manner with the traits development habit and stem color. The conclusion is made that a gene with a strong phenotypic effect that determines the development of the phenotype characteristic of mutation ps is located in the first linkage group near genes B and Stc.
Tài liệu tham khảo
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