Comparative Transcriptomic Profiling of a Salt-Tolerant Wild Tomato Species and a Salt-Sensitive Tomato Cultivar

doi:10.1093/pcp/pcq056

	Comparative Transcriptomic Profiling of a Salt-Tolerant Wild Tomato Species and a Salt-Sensitive Tomato Cultivar
	Sun, Wei 1; Xu, Xinna 2; Zhu, Huishan 1; Liu, Aihua 1; Liu, Lei 3; Li, Junming 3; Hua, Xuejun 1
刊名	PLANT AND CELL PHYSIOLOGY
	2010
卷号	51 期号:6 页码:997-1006
关键词	Ion homeostasis SABP2 Salt tolerance Transcriptomic profiling Wild tomato
ISSN号	0032-0781
DOI	10.1093/pcp/pcq056
通讯作者	Sun, Wei
英文摘要	Wild halophytic tomato has long been considered as an ideal gene donor for improving salt tolerance in tomato cultivars. Extensive research has been focused on physiological and quantitative trait locus (QTL) characterization of wild tomato species in comparison with cultivated tomato. However, the global gene expression modification of wild tomato in response to salt stress is not well known. A wild tomato genotype, Solanum pimpinellifolium 'PI365967' is significantly more salt tolerant than the cultivar, Solanum lycopersicum 'Moneymaker', as evidenced by its higher survival rate and lower growth inhibition at the vegetative stage. The Affymetrix Tomato Genome Array containing 9,200 probe sets was used to compare the transcriptome of PI365967 and Moneymaker. After treatment with 200 mM NaCl for 5 h, PI365967 showed relatively fewer responsive genes compared with Moneymaker. The salt overly sensitive (SOS) pathway was found to be more active in PI365967 than in Moneymaker, coinciding with relatively less accumulation of Na+ in shoots of PI365967. A gene encoding salicylic acid-binding protein 2 (SABP2) was induced by salinity only in PI365967, suggesting a possible role for salicylic acid signaling in the salt response of PI365967. The fact that two genes encoding lactoylglutathione lyase were salt inducible only in PI365967, together with much higher basal expression of several glutathione S-transferase genes, suggested a more effective detoxification system in PI365967. The specific down-regulation in PI365967 of a putative high-affinity nitrate transporter, known as a repressor of lateral root initiation, may explain the better root growth of this genotype during salt stress.
学科主题	Plant Sciences ; Cell Biology ; CELL BIOLOGY ; PLANT SCIENCES
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000279534200013
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/101178]
专题	蔬菜花卉研究所_茄科研究室
作者单位	1.Chinese Acad Sci, Inst Bot, Key Lab Photosynth & Environm Mol Physiol, Beijing 100093, Peoples R China 2.Xuzhou Normal Univ, Life Sci Coll, Xuzhou 221116, Peoples R China 3.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Sun, Wei,Xu, Xinna,Zhu, Huishan,et al. Comparative Transcriptomic Profiling of a Salt-Tolerant Wild Tomato Species and a Salt-Sensitive Tomato Cultivar[J]. PLANT AND CELL PHYSIOLOGY,2010,51(6):997-1006.
APA	Sun, Wei.,Xu, Xinna.,Zhu, Huishan.,Liu, Aihua.,Liu, Lei.,...&Hua, Xuejun.(2010).Comparative Transcriptomic Profiling of a Salt-Tolerant Wild Tomato Species and a Salt-Sensitive Tomato Cultivar.PLANT AND CELL PHYSIOLOGY,51(6),997-1006.
MLA	Sun, Wei,et al."Comparative Transcriptomic Profiling of a Salt-Tolerant Wild Tomato Species and a Salt-Sensitive Tomato Cultivar".PLANT AND CELL PHYSIOLOGY 51.6(2010):997-1006.