Postglacial population growth of Cunninghamia konishii (Cupressaceae) inferred from phylogeographical and mismatch analysis of chloroplast DNA variation

Shih Ying Hwang*, Tsan Piao Lin, Chiu Shun Ma, Chung Ling Lin, Jeng Der Chung, Jenq Chuan Yang

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

71 引文 斯高帕斯(Scopus)

摘要

Phylogeographical and mismatch analysis of chloroplast DNA (cpDNA) variation were used to infer the temporal dynamics of distributional and demographic history of Taiwan fir (Cunninghamia konishii). We examined 64 and 52 trees from 17 populations of C. konishii and 14 provenances of C. lanceolata, respectively, by sequencing three intergenic spacers and one intron using cpDNA universal primers. Of the aligned 1888 base pairs (bp) sequence, 30 varied among 28 haplotypes, which consisted of three transitions, 14 transversions and 13 indels. One ancestral haplotype was found in 86 individuals across the surveyed range of both species, C. konishii and C. lanceolata, which was distributed in all populations and provenances. The 28 haplotypes also included 15 C. konishii specific and 12 C. lanceolata-specific haplotypes. Ancestral haplotype was found fixed in five populations of C. konishii and five provenances of C. lanceolata. Other haplotypes occurred mainly as singletons. The levels of population differentiation studied are relatively low in both Cunninghamia species. The nucleotide diversity (θ) of chloroplast DNA sequences within C. konishii was slightly higher than that of C. lanceolata. Excess in singletons as well as star-like phylogeny of haplotypes suggested no clearcut migration patterns of C. konishii after glacial maximum. One probable demographic history of C. konishii is the postglacial population growth of C. konishii after a glacial bottleneck event. This inference is supported by the combined results of fossil pollen record, low nucleotide diversity, significant Tajima's D-value, phylogeographical analysis and unimodal mismatch distribution. Similarities and discrepancies between our results and those of Lu et al. (2001) are discussed.

原文英語
頁(從 - 到)2689-2695
頁數7
期刊Molecular Ecology
12
發行號10
DOIs
出版狀態已發佈 - 2003 十月 1
對外發佈

ASJC Scopus subject areas

  • 生態學、進化論、行為學與系統學
  • 遺傳學

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