Comparative analysis of alfalfa (Medicago sativa L.) seedling transcriptomes reveals genotype-specific drought tolerance mechanisms.

Plant Physiology and Biochemistry : PPB
Qiaoli MaYingzhong Xie

Abstract

Drought is one of the main abiotic factors that affect alfalfa yield. The identification of genes that control this complex trait can provide important insights for alfalfa breeding. However, little is known about how alfalfa responds and adapts to drought stress, particularly in cultivars of differing drought tolerance. In this study, the drought-tolerant cultivar Dryland 'DT' and the drought-sensitive cultivar WL343HQ 'DS' were used to characterize leaf and root physiological responses and transcriptional changes in response to water deficit. Under drought stress, Dryland roots (DTR) showed more differentially expressed genes than WL343HQ roots (DSR), whereas WL343HQ leaves (DSL) showed more differentially expressed genes than Dryland leaves (DTL). Many of these genes were involved in stress-related pathways, carbohydrate metabolism, and lignin and wax biosynthesis, which may have improved the drought tolerance of alfalfa. We also observed that several genes related to ABA metabolism, root elongation, peroxidase activity, cell membrane stability, ubiquitination, and genetic processing responded to drought stress in alfalfa. We highlighted several candidate genes, including sucrose synthase, xylan 1,4-beta-xylosidase, primary-...Continue Reading

References

Feb 22, 2003·Biochimica Et Biophysica Acta·Antonio Heredia
Apr 13, 2005·Plant Physiology·Hongyan ZhuRandy C Shoemaker
Feb 7, 2008·Annals of Botany·Peter M Neumann
Jul 23, 2008·Plant, Cell & Environment·Sonia M Cuellar-OrtizAlejandra A Covarrubias
Jul 3, 2009·Molecular Biology Reports·Houcong JinGruber Margaret
Mar 8, 2011·Journal of Plant Physiology·Yushi IshibashiShao-Hui Zheng
Jun 22, 2011·Molecular Plant·Qiong Zhao, Hong-Wei Guo
Dec 14, 2011·Current Opinion in Biotechnology·Jill DeikmanJacqueline E Heard
Jul 17, 2012·Plant Science : an International Journal of Experimental Plant Biology·Owen Rowland, Frédéric Domergue
Jul 23, 2013·Plant Physiology and Biochemistry : PPB·Lili TangXi Bai
Apr 4, 2014·Bioinformatics·Anthony M BolgerBjoern Usadel
Sep 23, 2014·Plant Physiology and Biochemistry : PPB·Zhi WangSang-Soo Kwak
Oct 23, 2014·Cellular and Molecular Life Sciences : CMLS·Yujie Fang, Lizhong Xiong
Nov 15, 2014·Plant Physiology and Biochemistry : PPB·Hongbing LiSang-Soo Kwak
Feb 19, 2015·Nature Biotechnology·Mihaela PerteaSteven L Salzberg
Apr 29, 2015·Biochemical and Biophysical Research Communications·Xiaodan WangXianghui Yu
Jun 17, 2018·Plant Science : an International Journal of Experimental Plant Biology·Michael L NuccioSean R Cutler
Jun 21, 2018·Physiologia Plantarum·Craig MatthewsAbdelali Hannoufa

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