LI Chun-yu,ZHOU Xuan,YAN Xiao-dan,et al.Discussion of Incompatibility and Sterility on HybridizationBetween Trititrigia and Thinopyrum intermedium[J].HEILONGJIANG AGRICULTURAL SCIENCES,2014,(05):1-6.
小偃麦与中间偃麦草杂交不亲合性和不育性的探讨
- Title:
- Discussion of Incompatibility and Sterility on HybridizationBetween Trititrigia and Thinopyrum intermedium
- 文章编号:
- 1002-2767(2014)05-0001-06
- Keywords:
- distant hybridization; Trititrigia; Thinopyrum intermedium; sterility
- 分类号:
- S512.9
- 文献标志码:
- A
- 摘要:
- 远缘杂交遇到的关键问题是可交配性和不育性,为深入了解远缘杂交的可交配性和不育性,探讨了小偃麦与中间偃麦草杂交当代的可交配性和F1~F4的不育性表现。小偃麦与中间偃麦草杂交当代的结实率为10%~39%,F1当年不结实,二至五年生结少量种子,结实率有逐年恢复的倾向;F2~F5分离世代不同类型结实率不同,普通小麦类型、小偃麦类型结实率可达70%~100%,中间偃麦草类型40%~50%,种子饱满度逐代改进。
- Abstract:
- The key problem which distant hybridization encountered is crossability and sterility,for the irsight of that,the contemporary crossability and sterility expression of F1~F4 ofTrititrigia and Thinopyrum intermedium hybridization were discussed.Seed setting rate of contemporary hybrids for Trititrigia and Thinopyrum intermedium hybrids was 10%~39%,F1 was sterility in the same year,and with a small amount seed for biennial to 5 year old,seed setting rate had a tendency to gradually restore.The different types of hybrid had different seed setting rate for F2~F5 segregative generation,the seed setting rate of the type common wheat and Trititrigia could reach 70%~100%,that of Thinopyrum intermedium was 40%~50%,seed plumpness was gradually improved.
参考文献/References:
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备注/Memo
收稿日期:2014-01-07 基金项目:国家高技术研究发展计划(863计划)资助项目(2011-AA10010205);黑龙江省教育厅科学技术研究资助项目(12531198) 第一作者简介:李春宇(1984-),男,黑龙江省北安市人,在读硕士,从事细胞遗传学研究。E-mail:zgq19840204@163.com。 通讯作者:张延明(1977-),男,博士,副教授,从事分子细胞遗传学研究。E-mail:blueright@163.com。