|Table of Contents|

Endogenous Gene Regulate the Formation of Unsaturated Fatty Acid of Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2008年06期
Page:
929-932
Research Field:
Publishing date:

Info

Title:
Endogenous Gene Regulate the Formation of Unsaturated Fatty Acid of Soybean
Author(s):
LI Li-li1; 2; ZHANG Lei1; LIU Li-jun1; TANG Xiao-fei1; YANG Zhe1
1Soybean Research Institute of Heilongjiang Academy of Agricultural Sciences，Harbin 150086；
2The Graduate College of Northeast Agricultural University，Harbin 150030，Heilongjiang，China
Keywords:
Soybean; Linoleic acid; Real-time PCR; fad2; fad3
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2008.06.0929
Abstract:
Linoleic acid is one of the helpful composition in soybean for human health.Its main synthesis approach is from oleic acid under the regulation of endogenous gene fad2.At the same time，endogenous gene fad3 plays some effect on the synthesis of linoleic acid. Seven soybean cultivars(lines)were planted and soybean pods were sampled every 5 days from full flowering，and the dynamic accumulation of unsaturated fatty acid and expression of fad2 and fad3 gene in soybean seeds were determined.Result suggested that the synthesis of unsaturated fatty acids was a chain reaction，the expression of single gene influenced both its related metabolic pathway and the accumulation of other unsaturated fatty acid.The high expression of fad3promoted the whole synthesis process.During the final stage of seed development，oleic acid content decreased whlie linoleic and linolenic content increased steadily.The linoleic content was lower when the expression of fad2 was inhibited.

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Last Update: 2014-10-04