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2009•Acta Horticulturae SinicaRequires access

Genetic Analysis of Head-leaf Traits Using Mixed Major Gene Plus Polygene Inheritance Model in Brassica oleracea L. var. italica Planch

Eryan Liu, Liu Yu-mei, Zhiyuan Fang, Yang Li-mei, Mu Zhuang, Yangyong Zhang, Yuan Suxia, Sun JiFeng, Zhansheng Li, Peitian Sun

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Abstract

A double haploid (DH) population and six generations (P1、P2、F1、B1、B2 and F2) derived from a broccoli combination of 86101 and 90196 were used to investigate the inheritance of head-leaf trait in the Brassica oleracea L. var. italica Planch by using mixed major gene plus polygene inheritance model. The results showed that the head-leaf trait was controlled by linked two additive-additive additive-epitasis major genes plus polygene (E-2-0 model) in DH population and by two additive-dominant-epitasis major genes plus additive-dominant-epitasis polygene (E model) in the joint analysis of the six generations,and the major gene heritability were 70.80%,73.59%,57.70% and 87.07% in the DH,B1,B2 and F2 populations,respectively. The above results showed that the head-leaf trait was controlled by two major genes plus polygene,and the major gene heritability was relatively high.

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A double haploid (DH) population and six generations (P1、P2、F1、B1、B2 and F2) derived from a broccoli combination of 86101 and 90196 were used to investigate the inheritance of head-leaf trait in the Brassica oleracea L. var. italica Planch by using mixed major gene plus polygene inheritance model. The results showed that the head-leaf trait was controlled by linked two additive-additive additive-epitasis major genes plus polygene (E-2-0 model) in DH population and by two additive-dominant-epitasis major genes plus additive-dominant-epitasis polygene (E model) in the joint analysis of the six generations,and the major gene heritability were 70.80%,73.59%,57.70% and 87.07% in the DH,B1,B2 and F2 populations,respectively. The above results showed that the head-leaf trait was controlled by two major genes plus polygene,and the major gene heritability was relatively high.

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Available abstract

A double haploid (DH) population and six generations (P1、P2、F1、B1、B2 and F2) derived from a broccoli combination of 86101 and 90196 were used to investigate the inheritance of head-leaf trait in the Brassica oleracea L. var. italica Planch by using mixed major gene plus polygene inheritance model. The results showed that the head-leaf trait was controlled by linked two additive-additive additive-epitasis major genes plus polygene (E-2-0 model) in DH population and by two additive-dominant-epitasis major genes plus additive-dominant-epitasis polygene (E model) in the joint analysis of the six generations,and the major gene heritability were 70.80%,73.59%,57.70% and 87.07% in the DH,B1,B2 and F2 populations,respectively. The above results showed that the head-leaf trait was controlled by two major genes plus polygene,and the major gene heritability was relatively high.

Key concepts: Polygene, Major gene, Heritability, Biology, Doubled haploidy, Brassica oleracea, Population, Genetic analysis

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Genetic Analysis of Head-leaf Traits Using Mixed Major Gene Plus Polygene Inheritance Model in Brassica oleracea L. var. italica Planch — Research Paper | ScholarLens