Genetic diversity analysis of 85 Momordica charantia L.germplasm resources on agronomic characters
[Objective]The agronomic traits of Momordica charantia L.were evaluated comprehensively,and the excellent resources were se-lected to provide reference for breeding and germplasm innovation.[Method]Variation analysis,correlation analysis and principal component hierarchical cluster analysis were used to evaluate 20 agronomic characters of 85 M.charantia L.germplasm resources.[Result]The varia-tion coefficient of quantitative traits of the germplasm resources of M.charantia L.was 7.00％to 77.00％,indicating that M.charantia L.was rich in types and distant in relation,which was suitable as parent material for germplasm innovation.The correlation analysis showed that the 20 agronomic traits had internal relationship of promoting or inhibiting each other,which could be used as the key information for compre-hensive evaluation of M.charantia L.germplasm resources.The principal component hierarchical clustering analysis showed that 85 bitter melons could be divided into 5 groups at a genetic distance of 7.5,and the typical characteristics and representative varieties of each group were extracted.The results showed that there were 17 bitter gourds in group Ⅰ,which belonged to malformable germplasm,and the represent-ative varieties were K80,K13,K45,K72 and K44;35 bitter gourds in Group Ⅱ,which belonged to early maturity germplasm,and the rep-resentative varieties were K26,K9,K10,K38 and K6;15 bitter gourds in Group Ⅲ,which belonged to late maturing germplasm,and the typical varieties were K17,K16,K74,K62 and K59;3 bitter gourds in Group Ⅳ,which belonged to precocious and strong female germ-plasm,and the typical varieties were K24,K83 and K43;15 bitter gourds in Group V,which belonged to high-yield germplasm,and the typical varieties were K2,K84,K28,K30 and K37.[Conclusion]The 85 M.charantia L.germplasm resources were rich and suitable as parent materials for planting innovation.The early-maturing germplasm K65,K38,K10,K9,K26,early-maturing female germplasm K43,K83,K24,high-yielding germplasm K37,K30,K28,K84,K2,and late-maturing germplasm K59,K62,K74,K16,K17 were selected.In the future breeding work,these 18 momorah germplasms can be selected as excellent target parents,and the malforming germplasm K44,K72,K45,K13 and K80 can be directly eliminated.
万方数据
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