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Value and utilization of alloplasmic common wheats with Aegilops crassa cytoplasm
Author(s) -
Liu C. G.,
Wu Y. W.,
Hou H.,
Zhang C.,
Zhang Y.,
McIntosh R. A.
Publication year - 2002
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1046/j.1439-0523.2002.755374.x
Subject(s) - heterosis , biology , aegilops , crassa , selfing , common wheat , cytoplasm , hybrid , genetics , agronomy , botany , neurospora crassa , gene , ploidy , chromosome , population , demography , sociology , mutant
Differences between alloplasmic lines and euplasmic controls indicated consistent beneficial effects of Aegilops crassa cytoplasm on common wheats. In general, the agronomic performance of alloplasmic lines was superior to that of euplasmic controls; the significant differences observed were ascribed to nucleus‐cytoplasmic (NC) interactions. A number of useful genetic attributes, for example, high yield, good quality and salt tolerance, were identified. A new NC hybrid variety ‘Xiaoshan 2134’ was bred. Field trials showed that the yield NC heterosis of ‘Xiaoshan 2134’ was 13.9% and the yield of ‘Xiaoshan 2134’ was at least 20% higher than that of a control variety widely grown in North China. The results suggested that Ae. crassa cytoplasm could broaden the genetic base of common wheat and improve common wheat cultivars by utilizing NC heterosis.