POLIMERIC GENES REGULATING STYLE LENGTH VARIABILITY WITHIN PIN MORPH OF COMMON BUCKWHEAT FAGOPYRUM ESCULENTUM MOENCH.
2024
Fesenko, N.N.
The article presents a detailed analysis of the inheritance of two SH-morphs (homostyly with the short pistil and short stamens) of Fagopyrum esculentum, the flower type of which is controlled by polymeric genes. The qualitative analysis of the segregations was supplemented by a quantitative one (by N.A. Sobolev's approach). Four modifier genes were identified: the long-styled (pin) morph carries plus-alleles of all four genes; a HS-phenotype is determined by minus-alleles at least in two loci. Two of these modifier genes are linked to the recessive allele s. These polymeric genes form a genetic background for the heterostyly locus (S). Minus alleles are present in populations in small doses and get a selective advantage under conditions of forced self-pollination or crossing between plants of the same flower type
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