Inheritance of Seed Protein Subunits of Common Buckwheat (Fagopyrum esculentum Moench) Cultivar Sobano and Its Homostylous Wild Type

摘要

The seed protein subunits of common buckwheat Sobano ( Fagopyrum esculentum ) and its homostylous wild type “HOMO” ( F.esculentum var. homotropicum ) were studied by means of SDS-PAGE analysis. The results showed that there are 33 bands of seed protein subunits in Sobano and 31 bands in HOMO. Most of them were found in the cotyledon and a few in the endosperm. There are nine subunits in Sobano seeds and ten subunits in HOMO. The inheritance analysis of the seed protein subunits in progenies of hybrids between Sobano and HOMO showed that there are four pairs of protein subunits controlled by a single co-dominant allele. The genetic analysis of morphological characters indicated that homostyly, shattering and acute achenes are controlled by different dominant single genes. The shattering gene has a linkage to the homostyly locus in a rate of 7.81% and to the allele PS44/PS42.9 in a rate of 22.54%.