水稻耐鹽基因定位與克隆及品種耐鹽性分子標記輔助選擇改良研究進展
發(fā)布時間:2018-03-04 19:29
本文選題:水稻 切入點:耐鹽性 出處:《中國水稻科學》2017年02期 論文類型:期刊論文
【摘要】:土壤鹽漬化嚴重制約水稻生產(chǎn)發(fā)展,提高耐鹽性已成為水稻育種的重要目標之一。挖掘水稻耐鹽新基因,解析其分子作用機制可以為水稻耐鹽性遺傳改良奠定基礎。本文從定位群體、耐鹽性鑒定時期和鑒定方法、耐鹽性評價指標、鑒定到的耐鹽QTL、耐鹽QTL的精細定位和圖位克隆等方面,總結了近年來水稻耐鹽QTL定位研究中所取得的進展;介紹了水稻耐鹽/鹽敏感突變體篩選和基因克隆以及耐鹽性關聯(lián)分析的研究近況;并對水稻耐鹽性分子標記輔助選擇改良的現(xiàn)狀作了概述。
[Abstract]:Soil salinization has seriously restricted the development of rice production and improved salt tolerance has become one of the important objectives of rice breeding. The molecular mechanism can be used to lay a foundation for the genetic improvement of salt-tolerance in rice. In this paper, the evaluation index of salt-tolerance, the identification period and method of salt-tolerance, and the evaluation index of salt-tolerance were discussed. The salt tolerance QTL, the fine mapping and map cloning of salt-tolerant QTL were identified, and the progress of QTL mapping in rice salt tolerance in recent years was summarized. In this paper, the recent studies on the screening of salt-tolerant / salt-sensitive mutants, gene cloning and salt-tolerance association analysis in rice were introduced, and the current situation of salt-tolerant molecular marker-assisted selection and improvement in rice was summarized.
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本文編號:1566986
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