التفاصيل البيبلوغرافية
| العنوان: |
Population structure and genetic diversity of Huperzia serrata (Huperziaceae) based on amplified fragment length polymorphism (AFLP) markers |
| المؤلفون: |
Huang, Ji1 huangji@shnu.edu.cn, He, Chengzhong2 |
| المصدر: |
Biochemical Systematics & Ecology. Dec2010, Vol. 38 Issue 6, p1137-1147. 11p. |
| مصطلحات موضوعية: |
*HUPERZIACEAE, *AMPLIFIED fragment length polymorphism, *PLANT population genetics, *PLANT species diversity, *PLANT growth, *CLUSTER analysis (Statistics) |
| مستخلص: |
Abstract: The levels and pattern of the genetic variation within and among natural populations of Huperzia serrata were investigated using amplified fragment length polymorphism markers. Seven primer combinations used in the study amplified 615 discernible bands with 532 (86.5%) being polymorphic, indicating a considerable high level of genetic diversity at the species level. AMOVA analysis revealed a low level of genetic differentiation among the ten populations. The UPGMA cluster of all samples showed that individuals from the same population occasionally failed to cluster in one distinct group. A Mantel test showed no significant correlation between genetic distance and geographical distance (r = 0.278, P = 0.891), suggesting that the gene flow was not restricted geographically. A number of factors that might affect the genetic profiles of H. serrata included clonal growth, selective effect of niche and outcrossing, as well as the effective wind-dispersal of spores. [Copyright &y& Elsevier] |
| قاعدة البيانات: |
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