Water dropwort was one of the important aquatic vegetables crop in China.The characteris-tics of its bisexual flowers,small flowers,uneven flower development,difficulty in seed germination,and the lack of male sterile materials limited its hybrid breeding and germplasm innovation.In this study,a male sterile material(OtBY001)was obtained from the wild environment of Yanzikou Town,Qixingguan District,Bijie City,Guizhou Province.The infertility characteristics of OtBY001 were studied through genetic analysis and observation of morphology,anther and pollen development.The male sterile material obtained from water dropwort was belonging to the species,Oenante thomsonii C.B.Clarke.Its infertility may be due to that the filament atrophy during flower development,the anthers cannot form viable pollen,but can receive foreign pollen to form seeds.Genetic analysis suggested that the male sterile material may be controlled by a recessive nuclear single gene.After dark treatment,Ot-BY001 has obvious yellowing characteristics and excellent taste.
Water dropwortMale infertilityIdentificationObservation
维普
万方数据
