Lineage and role in integrative taxonomy of a heterotrophic orchid complex.
Lineage and role in integrative taxonomy of a heterotrophic orchid complex.
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DOI：
10.1111/mec.16617
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发表时间：
2022-09
影响因子：
4.9
通讯作者：
Sinn, Brandon T.
中科院分区：
文献类型：
--
作者：
Barrett, Craig F.;Santee, Mathilda, V;Fama, Nicole M.;Freudenstein, John, V;Simon, Sandra J.;Sinn, Brandon T.
基于谱系的物种定义应用结合的方法来界定物种已变得越来越受欢迎。然而，这些方法的应用和承认血统的唯一定义最近受到质疑。明确考虑谱系和生态角色转变的证据的物种划界标准提供了一个机会，将生态有意义的数据从多个来源的物种边界的研究。在这里，这样的标准被应用到一个有问题的一组mycoheterotrophic兰花，Corallorhiza striata复杂，分析基因组，形态，物候，生殖模式，生态位，和真菌宿主数据。最近开发的方法产生基因组多态性数据-ISSRseq-证明了四个不同的谱系的证据，包括以前未确定的血统在海岸山脉和瀑布的加州和俄勒冈州，美国。四个谱系在形态、物候、繁殖方式和真菌共生体等方面存在差异。在人口分配和冗余分析框架中进行的综合分析提供了不同基因组谱系和“扩展”数据中相似的发散模式的证据，尽管信号较弱。然而，没有一个扩展数据集完全满足重大角色转变的条件，这需要固定差异的证据。在目前的研究中确定的四个谱系是在品种的水平上认识到的，而不是包括不同的物种。这项研究代表了迄今为止最全面的“血统+角色”的应用，并说明了这种方法的优势。
Lineage-based species definitions applying coalescent approaches to species delimitation have become increasingly popular. Yet, the application of these methods and the recognition of lineage-only definitions have recently been questioned. Species delimitation criteria that explicitly consider both lineages and evidence for ecological role shifts provide an opportunity to incorporate ecologically meaningful data from multiple sources in studies of species boundaries. Here, such criteria were applied to a problematic group of mycoheterotrophic orchids, the Corallorhiza striata complex, analyzing genomic, morphological, phenological, reproductive-mode, niche, and fungal host data. A recently developed method for generating genomic polymorphism data–ISSRseq–demonstrates evidence for four distinct lineages, including a previously unidentified lineage in the Coast Ranges and Cascades of California and Oregon, USA. There is divergence in morphology, phenology, reproductive mode, and fungal associates among the four lineages. Integrative analyses, conducted in population assignment and redundancy analysis frameworks, provide evidence of distinct genomic lineages and a similar pattern of divergence in the ‘extended’ data, albeit with weaker signal. However, none of the extended datasets fully satisfy the condition of a significant role shift, which requires evidence of fixed differences. The four lineages identified in the current study are recognized at the level of variety, short of comprising different species. This study represents the most comprehensive application of ‘lineage + role’ to date and illustrates the advantages of such an approach.
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影响因子：
3
作者：
Barrett, Craig F.;Freudenstein, John V.;Koljalg, Urmas
通讯作者：
Koljalg, Urmas
DOI：
10.1111/nph.15072
发表时间：
2018-05
期刊：
The New phytologist
影响因子：
--
作者：
Barrett CF;Wicke S;Sass C
通讯作者：
Sass C
影响因子：
4.9
作者：
Bidartondo, MI;Bruns, TD
通讯作者：
Bruns, TD
影响因子：
10.7
作者：
Barrett, Craig F.;Freudenstein, John V.;Santos, Cristian
通讯作者：
Santos, Cristian
影响因子：
3.7
作者：
Ackerfield, Jennifer R.;Keil, David J.;Funk, Vicki A.
通讯作者：
Funk, Vicki A.