Early Generation Breeding of Five Kinds of Fatty Acids in Soybean

doi:10.7668/hbnxb.2017.S1.020

Abstract

Abstract: In order to analyze the five fatty acids in soybean is suitable for early generation selection,mensurate the five different kinds of fatty acids in the 86 families of two parents of Jidou 12 and Heidou.Compared the distribution of fatty acids between F₂ and F₄.Though the two generations,analyzed the correlation,in order to nurture excellent soybean varieties in fatty acid composition.The results showed that:In addition to stearic acid,the oleic acid,linoleic acid,linolenic acid,palmitic acid had a higher concentrative distribution in the F₄ generation compared with the F₂ generation.The average of oleic acid and linolenic acid in F₂ generation higher than F₄ generation,the average of linoleic acid,soft fat acid,stearic acid in the F₂ generation lower than the F₄ generation,but the difference was not large.Oleic acid and linolenic acid was a significant negative correlation,oleic acid and linoleic acid was a significantly negatively related,linoleic acid and palmitic acid was a significant negative correlation in five kinds of fatty acids.But the five kinds of fatty acids had the smaller in the F₂ and F₄,the correlation coefficient were less than 0.5,so there is no linear relationship between two generations,in this group,it is not suitable for direct selection in the early generation.

Key words: Soybean, Fatty acid, Early generation selection

CLC Number:

S565.03

LEI Yakun, SONG Xiaokun, GUAN Zhongbo, YAN Long, LIU Bingqiang, DI Rui, HU Jinghui, YANG Chunyan, ZHANG Mengchen. Early Generation Breeding of Five Kinds of Fatty Acids in Soybean[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2017, 32(S1): 114-118. doi: 10.7668/hbnxb.2017.S1.020.

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