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【目的】揭示黏类小麦细胞质雄性不育系育性恢复基因的区域分布及恢复材料的1BL/1RS情况,为黏类细胞质雄性不育系优良恢复源筛选提供理论依据,以推动黏类小麦雄性不育“三系”强优势组合的选配能不断得到新的材料保障。【方法】以8个黏类不育系和国内外一批小麦品种(系)为试材,结合分子和细胞学技术,进行1BL/1RS易位系鉴定,并利用中国国内法对其育性恢复程度进行分类。【结果】在参试的256份材料中,初步鉴定约20%的小麦品种(系)属于1BL/1RS易位系;育性表现半不育、高可育和全可育的品种(系)分别有86.15%、91.67%和100%为非1BL/1RS易位系,表现全不育和高不育的品种(系)中均有40%左右属于1BL/1RS易位系;恢复能力在50%以上的品种(系)在中国春麦区、长江中下游冬麦区、西南冬麦区和华南冬麦区的比例依次为60%、65.85%、68.42%和71.43%。【结论】黏类不育系优良恢复源大都为非1BL/1RS易位系,主要集中在中国春麦区和南方冬麦区。
【Objective】 The objective of this study was to reveal the regional distribution of fertility restorer genes and 1BL / 1RS of restorer materials in CMS lines of adhesive-type wheat, providing a theoretical basis for screening excellent restorer sources of CMS lines in order to promote sticky-wheat male Infertility “Three lines” strong combination of advantages and choices can continue to get new material protection. 【Method】 Eight lines of CMS lines and a number of domestic and foreign wheat cultivars (lines) were used as experimental materials, and the molecular and cytological techniques were used to identify the 1BL / 1RS translocation line. The fertility Recovery degree classification. 【Result】 Among the 256 tested materials, about 20% of the wheat cultivars (lines) initially belonged to the 1BL / 1RS translocation line. The semi-sterile, highly fertile and fertile varieties (lines) Respectively. There were 86.15%, 91.67% and 100% non-1BL / 1RS translocation lines respectively. About 40% The percentages of above varieties (lines) were 60%, 65.85%, 68.42% and 71.43% respectively in the spring wheat area of China, middle and lower reaches of the Yangtze River, winter wheat area of southwest, winter wheat area of southwest China and south China. 【Conclusion】 Most of the elite CMS lines are non-1BL / 1RS translocations, mainly concentrated in the spring wheat and winter wheat in China.