RRC ID 33209
著者 Mohammed YS, Tahir IS, Kamal NM, Eltayeb AE, Ali AM, Tsujimoto H.
タイトル Impact of wheat-Leymus racemosus added chromosomes on wheat adaptation and tolerance to heat stress.
ジャーナル Breed Sci
Abstract Adaptation of wheat (Triticum aestivum L.) to high temperatures could be improved by introducing alien genes from wild relatives. We evaluated the responses of wheat-Leymus racemosus chromosome introgression lines to high temperature to determine their potentiality for developing improved wheat cultivars. Introgression lines and their parent Chinese Spring were evaluated in a growth chamber at the seedling stage and in the field at the reproductive stage in two heat-stressed environments in Sudan. Optimum and late planting were used to ensure exposure of the plants to heat stress at the reproductive stage. The results revealed the impact of several Leymus chromosomes in improving wheat adaptation and tolerance to heat. Three lines possessed enhanced adaptation, whereas two showed high heat tolerance. Two addition lines showed a large number of kernels per spike, while one possessed high yield potential. Grain yield was correlated negatively with the heat susceptibility index, days to heading and maturity and positively with kernel number per spike and triphenyl tetrazolium chloride assay under late planting. The findings suggest that these genetic stocks could be used as a bridge to introduce the valuable Leymus traits into a superior wheat genetic background, thus helping maximize wheat yield in heat-stressed environments.
巻・号 63(5)
ページ 450-60
公開日 2014-3-1
DOI 10.1270/jsbbs.63.450
PII 63_450
PMID 24757384
PMC PMC3949581
IF 1.865
引用数 9
WOS 分野 AGRONOMY PLANT SCIENCES
リソース情報
コムギ TACBOW0001 TACBOW0003 TACBOW0004 TACBOW0005 TACBOW0006 TACBOW0008 TACBOW0009 TACBOW0010 TACBOW0011 TACBOW0012 TACBOW0013 TACBOW0014 TACBOW0015 TACBOW0017