Variation in Chromosome Constitution of the Xiaoyan Series Partial Amphiploids and Its Relationship to Stripe Rust and Stem Rust Resistance

• Published in: Journal of genetics and genomics Vol. 42; no. 11; pp. 657 - 660
• Main Authors: Zheng, Qi, Luo, Qiaoling, Niu, Zhixia, Li, Hongwei, Li, Bin, Xu, Steven S., Li, Zhensheng
• Format: Journal Article
• Language: English
• Published: China Elsevier Ltd 20.11.2015
• Subjects: Basidiomycota - physiology; Chromosomes, Plant - genetics; Disease Resistance; Plant Diseases - immunology; Plant Diseases - microbiology; Plant Stems - genetics; Plant Stems - immunology; Plant Stems - microbiology; Poaceae - genetics; Poaceae - immunology; 中间偃麦草; 二倍体; 小麦品种; 抗性; 条锈病; 染色体结构变异; 秆锈病; 非生物胁迫
• ISSN: 1673-8527
• DOI: 10.1016/j.jgg.2015.08.004

The wild relatives of wheat （Triticum aestivum L.） contain tremendous amounts of potentially useful genes and represent a promising source of genetic diversity for wheat improvement （Bommineni and Jauhar, 1997）. Thinopyrum ponticum （Popd.） Barkworth and D. R. Dewey [syn. Agropyron elongatum （Host） P. Beauv., Elytrigia pontica （Podp.） Holub, Lophopy- rum ponticum （Podp.） A. L6ve] （2n = 10x = 70）, has high crossability with various Triticum species. Numerous studies have shown that Th. ponticum carries many potentially valu- able resistance genes against biotic and abiotic stresses （Shannon, 1978; Cox, 1991; Zheng et al., 2014a,b）. Transferring the useful genes from Th. ponticum to common wheat through chromosome engineering had been a successful way to enhance the resistance of wheat to pests and diseases （Sharma et al., 1989; McIntosh, 1991）.