海滨锦葵(Kosteletzkya pentacarpos)在黄河滩涂的引种及其分子鉴定

Molecular Classification and Introduction of Kosteletzkya pentacarpos Germplasm at Streamside of the Yellow River in Zhengzhou

为丰富国内海滨锦葵的种质资源,并选育优质高产新品系,本实验室于2011年从美国自然分布的9个州引进15个种群的海滨锦葵,种植于郑州市黄河滩涂,分析各性状间差异和进化关系。试验结果表明,供试海滨锦葵能较好地适应试验田的气候及土壤条件,且产量较高。根据种群间性状的表现和RAPD分子标记分析,15个种群可分为早熟和晚熟2大类群,其中以引自南卡罗来纳州的早熟种群和得克萨斯州的晚熟种群,表现优异,产量可达2.4 t/hm2。这些结果为海滨锦葵的品种选育与杂交育种提供了基础。

To rich the biodiversity of seashore mallow in China and develop new cultivars with high-quality and high-yielding, 15 populations were introduced from its native 9 states of America in 2011, and planted together with Labl and Lab2 in barren soil along with the Yellow River at Zhengzhou, Henan Province. Traits of 17 groups of ma- terials and phylogenetic relationship among them were analyzed. The results showed that these populations adapted to the local climate and soil conditions with high seed yields in the experimental field. According to the significant different characters and phylogenetic tree, 15 populations are divided into two groups,the early-maturing group and the late-maturing group. Yields of populations of South Carolina and Texas are the highest, which are up to 2.4 t/hm2. These results provide the base for artificial hybridizations between populations.