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《Journal of Anhui Agricultural Sciences》 2010-01
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Genetic Analysis on Chromosome of Hybrid F_1 between Elymus canadensis and Elymus sibiricus

LI Jing-huan et al(College of Life Science and Technology,Inner Mongolia Normal University,Hohhot,Inner Mongolia 010022)  
Morphologic and cytological characteristics of hybrid F1 between E.canadensis and E.sibiricus were studied.The results showed that hybrid F1 were obviously exceeded parents in plant growth vigor,and spike type of F1 was between parents.The karyotype formula of hybrid F1 which was true hybrid was 2n=22m+6sm.At meiotic anaphase,chromosome lagging behaviors were frequently observed.The frequency of lagging chromosomes of F1 was 87.37%.At meiotic metaphase,there were many univalents and multivalents,and the rod bivalent formed greatly.
【Key Words】： E.canadensis E.sibiricus Distant hybrid Chromosome
【Fund】： 十一五科技支撑项目“牧草远缘杂交育种技术研究”(2008BADB3B02);; 内蒙古自治区重大科技项目“优质全价草产品开发”;; 2010年教育部重点项目“加拿大披碱草与老芒麦远缘杂交后代不育机理的研究”
【CateGory Index】： S542.9
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