Agronomic Traits and Photosynthetic Traits of Transgenic Soybean Overexpressing ThIPK2(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:

2012年05期

Page:

775-777

Research Field:

Publishing date:

Info

Title:

Agronomic Traits and Photosynthetic Traits of Transgenic Soybean Overexpressing ThIPK2

Author(s):

LIU Miao¹; 2; LI Dong-mei¹; WANG Zhi-kun¹; MENG Fan-li¹; LI Yong-guang¹; WU Xiao-xia¹; ZHANG Hong-xia³; LI Wen-bin¹

1. Breeding for Soybean in Northeast China,Ministry of Agriculture,Soybean Research Institute,Northeast Agricultural University,Harbin 150030,Heilongjiang;

2.Crop Tillage and Cultivation Institute,Heilongjiang Academy of Agricultural Sciemes,Harbin 150086,Heilongjiang;

3.National Key Laboratory of Plant Molecular Genetics,Shanghai Institute of Plant Physiology and Ecology,Chinese Academy of Sciences,Shanghai 200032,China

Keywords:

ThIPK2; Transgenic soybean; Stress-tolerance; Growth and development period; Agronomic trait

PACS:

S565.1

DOI:

10.3969/j.issn.1000-9841.2012.05.018

Abstract:

Dongnong50 was transformed with ThIPK2,a stress-tolerance gene,and transgenic progenies with ThIPK2 with stable heredity characters were obtained in this study.The seeds of T₄ generation were planted on transgenic experimental base,investigated agronomic traits and compared to control plants Dongnong50.For the transgenic plants,the growth duration remained stable,while significant increase were observed for plant height,pods on main stem,pods on branch,and seeds per plant.Hence, the ThIPK2 gene is beneficial to improve soybean yields.Drought stress declined all indicators of photosynthetic physiology.But indicators of transgenic soybean were higher than non-transgenic soybean under drought stress.In addition,transgenic plants accumulated more dry matter than controls under drought condition.

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