摘要
为探究假臭草入侵海南岛的途径,研究了海南岛与粤西假臭草的亲缘关系。选择海南和广东的8个假臭草居群,研究了居群之间的遗传多样性、形态学和生物量分配特征。根据遗传多样性的聚类分析发现:海南岛的5个居群聚为第1组,广东省的阳江(YJ)和徐闻(XW)2个居群聚为第2组,广东鹤山(HS)与第2组的亲缘关系比第1组(海南组)更近一些。第2组与海口(HK)、三亚(SY)居群亲缘关系比琼海(QH)、琼中(QZ)、儋州(DZ)3个居群更近。结合遗传多样性的聚类分析、形态学特征和生物量分配特征分析8个居群假臭草的亲缘关系,为研究假臭草入侵海南岛的途径提供理论依据。
In order to explore the pathway of Eupmorium cauuium invading Hainan Island, we studied the relationship of the species from Hainan Island and west Guangdong province. We selected 8 populations of E. cauuium in Hainan Island and Guangdong for the study on the genetic diversity, morphology and the characteristics of biomass distribution among them. Based on the dendrogram analysis of genetic distance, we found that the 5 populations from Hainan Island were in the first cluster, and the 2 populations from Yangjiang （YJ） and Xuwen （XW） in Guangdong province were in the second cluster. The population from Heshan （HS） was nearer to the second cluster than the first. The second cluster was nearer to the populations from Haikou （HK） and Sanya （SY） than the other 3 populations, i.e. Qionghai （QH）, Qiongzhong （QZ） and Danzhou （DZ） from Hainan Island. Combining the dendrogram analyses of characteristics of morphology and biomass distribution, can provide a theoretical basis for the study of pathways of E. cauuium invading Hainan Island.
出处
《广东农业科学》
CAS
CSCD
北大核心
2014年第2期99-105,共7页
Guangdong Agricultural Sciences
基金
国家自然科学基金(31060095)
