文化大學機構典藏 CCUR:Item 987654321/2904
English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 47249/51115 (92%)
造訪人次 : 14031277      線上人數 : 313
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
    •  Adv. Search
    Home ‧ Login ‧ Upload ‧ Help ‧ About ‧ Administer Goto mobile version


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/2904


    题名: Evidence for the existence of some dissociation in an otherwise strong linkage disequilibrium between mitochondrial and chloroplastic genomes in Cyclobalanopsis glauca
    作者: Lin TP
    Chuang WJ
    Huang SSF
    Hwang SY
    贡献者: 生科所
    关键词: Cyclobalanopsis glauca
    linkage disequilibrium
    mtDNA-cpDNA association
    phylogeography
    Taiwan
    日期: 2003
    上传时间: 2009-11-30 11:13:57 (UTC+8)
    摘要: Variations in mitochondrial DNA in Cyclobalanopsis glauca (Thunb. ex Murray) Oerst. were studied in 140 trees from 32 populations collected from within the tree's natural range. By sequencing two mitochondrial DNA intron fragments (nad4/3-nad4/4r and nad7/2-nad7/3r), we revealed a total of 1788 bp and five polymorphic sites which allowed us to distinguish six mitotypes. The mitochondrial DNA markers provided replicated data to support population phylogeographical scenarios suggested previously using chloroplastic DNA markers. The gene genealogical tree of mitochondrial DNA was partially congruent with the chloroplastic DNA tree owing to the slower mutation rate and different mutational direction. Significant linkage disequilibrium existed between the two organellar genomes. Further paring analyses between fragments synthesized using different primers, accompanied by exclusion of polymorphic sites, showed that the random association could be attributed specifically to one of the polymorphic sites of the petG-trnP fragment of the chloroplastic genome, and the three polymorphic sites of the nad4/3-nad4/4r fragment of the mitochondrial genome. The former was inferred to derive from paternal leakage, and the latter from recurrent mutation. These polymorphic sites were also responsible for uncoupling of the combined gene tree of mitotype and chlorotype. In conclusion, specific fragments found in this study contribute to the incomplete congruence of the two organellar lineages that otherwise associate well phylogeographically.
    關聯: MOLECULAR ECOLOGY Volume: 12 Issue: 10 Pages: 2661-2668
    显示于类别:[生物科技研究所 ] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbText784检视/开启


    在CCUR中所有的数据项都受到原著作权保护.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈