Using haplotype networks, estimation of gene flow and phenotypic characters to understand species delimitation in fungi of a predominantly Antarctic Usnea group (Ascomycota, Parmeliaceae)
Using haplotype networks, estimation of gene flow and phenotypic characters to understand species delimitation in fungi of a predominantly Antarctic Usnea group (Ascomycota, Parmeliaceae)
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使用单倍型网络、估计基因流和表型特征来了解主要南极松萝类（子囊菌门、Parmeliaceae）真菌的物种界定
DOI：
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发表时间：
2012
影响因子：
1.6
通讯作者：
H. Lumbsch
中科院分区：
文献类型：
--
作者：
Nora Wirtz;C. Printzen;H. Lumbsch
地衣形成真菌Usnea属中主要分布在南极和南美洲的神经类物种群的物种划分尚不清楚。形态变异被解释为恶劣生态条件的结果，但初步的分子数据导致了对这些地衣真菌目前物种划分的怀疑。我们使用系统发育方法和内聚物种识别方法检查物种边界，生成单倍型网络，并观察网络中发现的进化枝与表型性状的关联。此外，我们估计基因流动之间的检测分支和目前限制的物种。我们确定了几个与表型性状显著相关的分支，但不一定与当前的物种界限一致。在一个案例中(U. aurantiaco-atra/U.；（南极洲）、网络分析和基因流估计都没有提供明显物种的证据。另一物种对的独特性(U. subantarctica/U.；尽管目前已被接受的物种之间存在基因流动的证据，但仍令人怀疑。
Species delimitations in the predominantly Antarctic and South American group of neuropogonoid species of the lichen-forming fungal genus Usnea are poorly understood. Morphological variability has been interpreted as a result of harsh ecological conditions, but preliminary molecular data have led to doubts about the current species delimitations in these lichenized fungi. We examined species boundaries using a phylogenetic approach and a cohesion species recognition method generating haplotype networks and looking at associations of phenotypic characters with clades found in the networks. In addition, we estimated gene flow among detected clades and currently circumscribed species. We identified several clades that were significantly associated with phenotypic characters, but did not necessarily agree with current species circumscriptions. In one case (U. aurantiaco-atra/U. antarctica), network analysis and the estimation of gene flow provided no evidence of distinct species. The distinctness of another species pair (U. subantarctica/U. trachycarpa) remains dubious, showing evidence for gene flow among currently accepted species.
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影响因子：
3.3
作者：
J. Hey;J. Wakeley
通讯作者：
J. Hey;J. Wakeley
影响因子：
3.3
作者：
Alan R. Templeton;K. Crandall;C. Sing
通讯作者：
Alan R. Templeton;K. Crandall;C. Sing
影响因子：
3.3
作者：
R. Hudson;M. Slatkint;W. Maddison
通讯作者：
R. Hudson;M. Slatkint;W. Maddison
影响因子：
3.3
作者：
R. Kliman;P. Andolfatto;J. Coyne;F. Depaulis;M. Kreitman;A. Berry;J. McCarter;J. Wakeley;J. H
通讯作者：
R. Kliman;P. Andolfatto;J. Coyne;F. Depaulis;M. Kreitman;A. Berry;J. McCarter;J. Wakeley;J. H
对表型关联与从限制性内切核酸酶作图推断的单倍型进行分支分析。
影响因子：
3.3
作者：
Templeton,AR;Sing,CF
通讯作者：
Sing,CF