Chloroplast genetic diversity and biogeography in the serpentine endemic Ni-hyperaccumulator Alyssum bertolonii.
Chloroplast genetic diversity and biogeography in the serpentine endemic Ni-hyperaccumulator Alyssum bertolonii.
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DOI：
10.1046/j.1469-8137.2003.00664.x
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发表时间：
2003-02
期刊：
影响因子：
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通讯作者：
A. Mengoni;C. Gonnelli;E. Brocchini;F. Galardi;S. Pucci;R. Gabbrielli;M. Bazzicalupo
中科院分区：
文献类型：
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作者：
A. Mengoni;C. Gonnelli;E. Brocchini;F. Galardi;S. Pucci;R. Gabbrielli;M. Bazzicalupo
利用叶绿体微卫星（cpSSR）技术分析了我国特有的蛇纹草Alyssum bertolonii居群内和居群间的遗传变异。·在来自发现该物种的四个分离的意大利北部蛇形地区的9个种群的90株植物中鉴定出35种不同的叶绿体单倍型。·在每个采样的种群中发现了高水平的遗传多样性。分子方差分析（AMOVA）显示，同一蛇纹岩区不同种群间和不同地区种群间的分化程度较高（Φ ST = 0.622，Φ CT = 0.252）。结果表明：每个种群都是由少数建立者建立的，然后分化现有的叶绿体单倍型;每个种群都是一个不同的遗传实体;同一蛇形区域内的种群比来自不同区域的种群更相关。
• Chloroplast microsatellites (cpSSR) were used to analyze the patterns of genetic variation within and among populations of the serpentine endemic, Alyssum bertolonii . • Thirty-five different chloroplast haplotypes were identified in 90 plants sampled from nine populations originating from the four disjunct northern-Italian serpentine regions where the species is found. • High levels of genetic diversity were found within each of the populations sampled. Analysis of Molecular Variance (AMOVA) showed high degrees of differentiation among both different populations of the same serpentine region and different regions (Φ ST = 0.622, Φ CT = 0.252, respectively). • The results indicated that: each population was established by few founders and then subsequently differentiated the existing chloroplast haplotypes; each population is a distinct genetic entity; and populations within the same serpentine region are more related than populations from different regions.