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Analysis on Parent Traceability and Productivity Potential of Mudou 11(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2019年05期
Page:
681-685
Research Field:
Publishing date:

Info

Title:
Analysis on Parent Traceability and Productivity Potential of Mudou 11
Author(s):
(1.Mudanjiang Branch of Heilongjiang Academy of Agricultural Sciences/Mudanjiang Experiment Station of the National Center for Soybean Improvement，Mudanjiang 157041, China; 2.Heilongjiang Agricultural Economy Vocational College，Mudanjiang 157041, China)
Keywords:
Soybean;  Mudou 11;  Pedigree;  Nuclear genetic contribution rate
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2019.05.0681
Abstract:
Mudou 11, with the characteristics of high yield, resistant to disease and tolerance to density, was bred with female parent Heinong 51 and male parent Suinong 31 through sexual hybridization and pedigree selection. Based on the pedigree tree and ancestral parent of Mudou 11, we analyzed the nuclear genetic contribution rate of ancestral parents and the genetic contribution of the core soybean germplasm widely spread in pedigree tree to the yield-increasing potential of Mudou 11. The results showed that Mudou 11 belonged to Wudingzhu cytoplasmic family, and its transmission process was Wudingzhu →Heinong 16 →Heinong 28→Heinong 37 →Heinong 51→Mudou 11. The nuclear genes were provided by 26 ancestral parents followed by Yongfengdou, Jinyuan, Jilinsilihuang, Keshanbaimei, Xiaojinhuang, Keshansilihuang, Tokachi nagaha, Ha 78-6289-10, Wudingzhu and Dongnong 33.The top three ancestor parents with larger nucleus genetic contribution rate were Yongfengdou (10.16%), Jinyuan (10.11%) and Jilinsilihuang (9.91%), respectively, and the latter two parents were used 22 times and 20 times as direct or indirect parents. Some core ancestor parents, such as Qunxuan 1, Huangbaozhu, Zihua 4, Mancangjin, Fengshou 6, Heinong 16, Suinong 4 and Kennong 4, were used to be widely promoted and applied in soybean production in Northeast China. Mudou 11 had aggregated high-yield genetic genes of core germplasm in Northeast China, and the hybridization and recombination of these excellent genes made it have genetic basis potential for high-yield. Mudou 11, integrated the precocious genes of ancestral parents and resulted in the selection effect of transgressive inheritance, matured 11 d earlier than female parent Heinong 51 and 6 d earlier than male parent Suinong 31. It is suitable for planting in areas with effective accumulative temperature (≥10 ℃) over 2 300 ℃.

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Last Update: 2019-09-20