|Table of Contents|

INHERITANCE OF FAT AND FATTY ACID COMPOSITION CONTENTS IN SOYBEAN(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2007年06期
Page:
801-806
Research Field:
Publishing date:

Info

Title:
INHERITANCE OF FAT AND FATTY ACID COMPOSITION CONTENTS IN SOYBEAN
Author(s):
ZHENG Yong-zhan1; 3; GAI Jun-yi1; ZHOU Rui-bao2; TIAN Shao-jun2; LU Wei-guo1; 3; LI Wei-dong3
1. Soybean Research Institute，Nanjing Agricultural University/National Center for Soybean Improvement/National Key Laboratory for Crop Genetics and Germplasm Enhancement,Nanjing 210095；
2. Soybean Processing Research Institute，Henan University of Technology,Zhengzhou 450052；
3. Institute of Cotton and Oil Crops，Henan Academy of Agricultural Sciences,Zhengzhou 450002
Keywords:
Soybean [Glycine max(L.)Merr.]; Fat; Fatty acid composition; Inheritance; Major gene + polygene mixed inheritance model
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2007.06.001
Abstract:
Genetic improvement of fat and fatty acid composition content of soybean seed is interesting to both farmers and processors. The objective of this study was aimed at revealing the genetic mechanism of fat and fatty acid composition content in soybean. Genetic analysis were performed under major gene + polygene mixed inheritance model in the P1，P2，F1，and BC1F3 of the cross Esse×ZDD2315. The results showed that fat content and linolenic acid content of the cross were controlled by two major genes plus polygenes，with the major gene heritability of 16.23%，and 41.98%，respectively，and polygene heritability of 53.49%，and 24.17%，respectively. Three major genes and polygenes contributed to the inheritance of palmitic，linoleic and stearic acids contents，with the major gene heritability of 71.63%，91.59%，and 91.51%，respectively，and polygene heritability of 14.78% in palmitic acid，but no polygenes detected in linoleic and stearic acids. The inheritance of oleic acid content was controlled by three major additive genes，with the heritability of 74.66%. The conclusions were as follows：the inheritance of fat and fatty acid composition content in soybean involved with both major genes and polygenes；while for other fatty acids mainly due to major genes with their heritability of more than 70%，the major gene heritability of fat and linolenic acid contents were smaller. In the improvement of fat content，accumulating polygenes should be emphasized，while utilization of major genes is preferred for fatty acid improvement. There will be no serious contradictions in the improvement of both fat content and fat quality traits.

References:

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Last Update: 2014-10-19