Introgression of salt-tolerance from somatic hybrids between common wheat and Thinopyrum ponticum

被引:51
作者
Chen, SY [1 ]
Xia, GM [1 ]
Quan, TY [1 ]
Xiang, FN [1 ]
Yin, J [1 ]
Chen, HM [1 ]
机构
[1] Shandong Univ, Sch Life Sci, Jinan 250100, Peoples R China
基金
中国国家自然科学基金;
关键词
somatic hybrid lines; Triticum aestivum L; Thinopyrum ponticum (Agropyron elongatum); salt-tolerance; GISH;
D O I
10.1016/j.plantsci.2004.05.010
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Introgression lines derived from somatic hybrids between Thinopyrum ponticum Podp. (Agropyron elongatum (Host) Nevishi) and Triticum aestivum L. cv. Jinan 177 were screened for salt-tolerance in hydroponic experiments. Their growth rates, salt-tolerance index and the content of free proline, Na+, K+ and Na+/K+ in the leaf were compared with those of wheat cv. Jinan 177. The lines were tested under natural saline conditions in two locations. One line expressed higher salt-tolerance than its parental wheat and a check salt-tolerant cultivar. Karyotype analysis showed that the two lines possessed 42 chromosomes of wheat introgressed with small chromosome segments from Th. ponticum. We suggest that these two lines show stable inheritance of salt tolerance, and that this salt-tolerance has been transfer-red from Th. ponticum into wheat. (C) 2004 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:773 / 779
页数:7
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