Genetic analysis of the total flavonoids in cucumber | 榛(Cucumis sativus L.)婚浼

Chinese. ㄩ婚捐宸2 涓绯伙冲Ma7M6舵浜ょ(Ma7xM6)锛骞舵寤烘浜ょ6 涓浠ｇ兢浣(P1P2F1B1B2F2)锛ㄥ搴娴瀹榛婚绱㈠堕浼瑙寰缁琛ㄦ婚板甯剧ずB1B2 F2绂荤兢浣杩缁甯涓虹澶宄版宄板锛琛ㄧ涓轰富哄+澶哄伴浼瑰澶涓浠ｈ琛ㄦ榛婚浼妯″2 瀵瑰-炬-涓浣т富哄+-炬-涓浣у哄妯″(E-0 妯″); 涓诲哄浼涓2.12%~ 65.89%锛澶哄浼涓0~46.72%锛B2F2缇や涓诲哄浼姣澶哄浼楂锛澧瑰樊瀵硅〃瑰樊褰卞涓瀹姣锛崇澧瀵规婚浼褰卞杈澶э瀵逛涓х堕浜浠ｉ┿

English. Six-generations of the hybridization combination,F1,F2 , backcrossesB1 andB2 and their parentsP1 andP2 , were made with two cucumber varieties, Southern China types Ma7 , Northern China typesM6. Inheritance of total flavonoids contents measured with spectrophotometer was studied through joint analysis of multiple generations. The frequency of total flavonoids contents inB1 ,B2 andF2 populations displayed one asymmetry peak distribution or multimodal distribution, indicating that the trait was quantitative in nature and controlled by major gene plus polygene. The results of joint segregation analysis suggested that total flavonoids contents fitted the pattern of additive-dominance-epitasis major gene plus additive-dominance-epitasis polygene (E-0 model). The major gene heritability was 2.12%~65.89% and polygene heritability was 0%~46.72%. InB2 andF2 generations, the major gene heredity rate was higher than the polygene heredity rate, the effects of environment variance on the phenotype variance had the certain proportion, i.e., environment could play the major role for the inheritance of total flavonoids contents which the trait could be selected in the high generation selection.