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Plant Sci. 2015 Sep;238:33-45. doi: 10.1016/j.plantsci.2015.05.013. Epub 2015 May 22.

Transcriptome analysis reveals that distinct metabolic pathways operate in salt-tolerant and salt-sensitive upland cotton varieties subjected to salinity stress.

Author information

1
College of Biological Science, China Agricultural University, Beijing 100193, China. Electronic address: guojinyan2008@126.com.
2
Department of Plant Genetics and Breeding, College of Agronomy and Biotechnology, Key Laboratory of Crop Heterosis and Utilization of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China. Electronic address: shi-850411@163.com.
3
Department of Plant Genetics and Breeding, College of Agronomy and Biotechnology, Key Laboratory of Crop Heterosis and Utilization of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China. Electronic address: guoxiaoyan503@yahoo.cn.
4
College of Biological Science, China Agricultural University, Beijing 100193, China. Electronic address: lwzhanghz@163.com.
5
College of Biological Science, China Agricultural University, Beijing 100193, China. Electronic address: xwenying@gmail.com.
6
Research Institute of Cash Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, Hubei, China. Electronic address: yumeiwang001@126.com.
7
College of Biological Science, China Agricultural University, Beijing 100193, China. Electronic address: zhensu@cau.edu.cn.
8
Department of Plant Genetics and Breeding, College of Agronomy and Biotechnology, Key Laboratory of Crop Heterosis and Utilization of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China. Electronic address: jinping_hua@cau.edu.cn.

Abstract

Salinity stress is one of the most devastating abiotic stresses in crop plants. As a moderately salt-tolerant crop, upland cotton (Gossypium hirsutum L.) is a major cash crop in saline areas and a suitable model for salt stress tolerance research. In this study, we compared the transcriptome changes between the salt-tolerant upland cotton cultivar Zhong 07 and salt-sensitive cultivar Zhong G5 in response to NaCl treatments. Transcriptional regulation, signal transduction and secondary metabolism in two varieties showed significant differences, all of which might be related to mechanisms underlying salt stress tolerance. The transcriptional profiles presented here provide a foundation for deciphering the mechanism underlying salt tolerance. Based on our findings, we proposed several candidate genes that might be used to improve salt tolerance in upland cotton.

KEYWORDS:

Gossypium; Salinity; Secondary metabolism; Signal transduction; Transcriptome

PMID:
26259172
DOI:
10.1016/j.plantsci.2015.05.013
[Indexed for MEDLINE]

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