Analysis of the genetic structure of Spartina alterniflora populations in China based on cpDNA trnT-trnF sequences

Abstract

Abstract: Polymorphism of the chloroplast DNA (cpDNA) trnT-trnF sequence from eight Spartina alterniflora populations, including 80 samples in China, was measured. Three haplotypes, which were distinguished by two single A insertion/deletions (Indel), were relatively lower haplotype diversity types (Hd=0.379) than the native populations, which indicated an obvious bottleneck effect. The mean values of Nei’s genetic distance and genetic differentiation index (Fst) of eight populations were 0.064 and 0.092, and Nei’s genetic distances ranged from 0.000 to 0.184. AMOVA revealed that there was 9% genetic variation in the total population. At the cpDNA level, there was a relatively lower level of genetic differentiation but S. alterniflora populations had a higher genetic differentiation within populations in China.

CLC Number:

Q943.1

WU Juan-zi, WANG Qiang, ZHONG Xiao-xian, CHEN Jian-qun. Analysis of the genetic structure of Spartina alterniflora populations in China based on cpDNA trnT-trnF sequences[J]. Acta Prataculturae Sinica, 2012, 21(4): 134-140.

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