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Aanalysis of Drought Tolerance in Transgenic Soybean with GmHAP3-17(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2015年02期
Page:
249-254
Research Field:
Publishing date:

Info

Title:
Aanalysis of Drought Tolerance in Transgenic Soybean with GmHAP3-17
Author(s):
WANG Ding-hui1; 2;  LI Yong-guang1;  LI Zhen1;  LI Wen-bin1
1College of Life Sciences, Liaoning Normal University, Dalian 116029, China;?
2 Key Laboratory of Soybean Biology in Chinese Ministry of Education, Key Laboratory of Soybean Biology and Breeding/Genetics of Chinese Agriculture Ministry, Northeast Agricultural University, Harbin 150030,China
Keywords:
GmHAP3-17;  Soybean;  Drought tolerance;  Gene function analysis
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2015.02.0249
Abstract:
The present research work was mainly aim at analysing the morphological and physiological response under drought stress in transgenic soybean with GmHAP3-17. The results showed that under water-limited conditions of greenhouse, comparing with wild-type, the H16, H18 and H26 lines of transgenic soybean appeared better growth status, wilting later and milder, longer taproot, more lateral roots, lower degree of leaf damage, lower concentration of MDA and higher content of leaf relative water. Future experiment proved that under natural drought conditions of dry regions, comparing with wild-type, the root system of transgenic soybeans developed well, grew rapidly, and showed longer taproot, more lateral roots. The plants of transgenic soybean were higher in plant height, more in the number of branch and main stem node, more in pods and kernels, larger in seed size and hundred-grain weight. These consequences indicated that the GmHAP3-17 gene functions were positive regulation after drought stress treatment and thus, it could be useful in molecular breeding as effective genetic sources of transgenic crops.

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Last Update: 2015-06-07