利用形态学、细胞学以及SSR标记技术对从硬簇麦和Am 3的杂种后代中选育的种质系‘山农030713’进行了鉴定,结果表明:种质系‘山农030713’大田生长整齐一致,农艺性状较好,且对白粉病免疫;其根尖细胞染色体数目为2n=42,花粉母细胞减数分...利用形态学、细胞学以及SSR标记技术对从硬簇麦和Am 3的杂种后代中选育的种质系‘山农030713’进行了鉴定,结果表明:种质系‘山农030713’大田生长整齐一致,农艺性状较好,且对白粉病免疫;其根尖细胞染色体数目为2n=42,花粉母细胞减数分裂中期Ⅰ(PM C MⅠ)染色体构型为2n=21Ⅱ;它与普通小麦的杂种F1PM C MⅠ多数细胞中形成21个二价体,且常有四价体出现,可能伴有染色体的结构变异;SSR分析证明‘山农030713’基本染色体组成为AABBDD,引物X gwm 99-1A在‘山农030713’中扩增出簇毛麦的特异带,表明‘山农030713’中有来自于簇毛麦的遗传物质,此特异带可作为识别‘山农030713’的SSR标记.综合形态学、细胞学和SSR分析结果推测,‘山农030713’可能是一个小麦-簇毛麦易位系.展开更多
The pollen grain morphology and leaf epiderm shape and microstructural of Rye（ Secale cereal ）, common wheat and Octoploid Trititrigia were observed with the scanning electron microscope（SEM）. The results revealed...The pollen grain morphology and leaf epiderm shape and microstructural of Rye（ Secale cereal ）, common wheat and Octoploid Trititrigia were observed with the scanning electron microscope（SEM）. The results revealed that there were great differences between pollen and leaf epiderm microcosmic morphology in three species. Such characteristics of Octoploid tnticalwere between those of common wheat and Rye. The morphology of pollen grain and leaf epiderm shape counld be used as an index for taxonomy for genera and species, and had somewhat scientif- ic references to identify new multiploid species created by chromosome engineering.展开更多
文摘利用形态学、细胞学以及SSR标记技术对从硬簇麦和Am 3的杂种后代中选育的种质系‘山农030713’进行了鉴定,结果表明:种质系‘山农030713’大田生长整齐一致,农艺性状较好,且对白粉病免疫;其根尖细胞染色体数目为2n=42,花粉母细胞减数分裂中期Ⅰ(PM C MⅠ)染色体构型为2n=21Ⅱ;它与普通小麦的杂种F1PM C MⅠ多数细胞中形成21个二价体,且常有四价体出现,可能伴有染色体的结构变异;SSR分析证明‘山农030713’基本染色体组成为AABBDD,引物X gwm 99-1A在‘山农030713’中扩增出簇毛麦的特异带,表明‘山农030713’中有来自于簇毛麦的遗传物质,此特异带可作为识别‘山农030713’的SSR标记.综合形态学、细胞学和SSR分析结果推测,‘山农030713’可能是一个小麦-簇毛麦易位系.
文摘The pollen grain morphology and leaf epiderm shape and microstructural of Rye（ Secale cereal ）, common wheat and Octoploid Trititrigia were observed with the scanning electron microscope（SEM）. The results revealed that there were great differences between pollen and leaf epiderm microcosmic morphology in three species. Such characteristics of Octoploid tnticalwere between those of common wheat and Rye. The morphology of pollen grain and leaf epiderm shape counld be used as an index for taxonomy for genera and species, and had somewhat scientif- ic references to identify new multiploid species created by chromosome engineering.
