Local environment-driven adaptive evolution in a marine invasive ascidian (Molgula manhattensis).
Local environment-driven adaptive evolution in a marine invasive ascidian (Molgula manhattensis).
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DOI：
10.1002/ece3.7322
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发表时间：
2021-05
影响因子：
2.6
通讯作者：
Zhan A
中科院分区：
文献类型：
--
作者：
Chen Y;Gao Y;Huang X;Li S;Zhan A
阐明环境驱动的海洋入侵者适应进化的分子机制对于理解入侵成功和进一步预测其未来的入侵至关重要。尽管越来越多的证据表明适应性进化有助于生物适应不同的环境，但关于环境如何影响入侵栖息地的基因组变异以及大多数海洋入侵者当地适应的遗传基础，仍然存在知识空白。在这里，我们进行了限制性位点相关DNA测序（RADseq）来评估种群遗传多样性，并进一步研究海洋入侵海鞘（Molgula manhattensis）的局部适应基因组特征。结果表明，大多数入侵种群表现出显著的遗传分化，近期基因流低，没有明显的种群瓶颈信号。基于三种基因组扫描方法，我们确定了109个潜在的环境选择候选位点。冗余分析和方差划分分析表明，局部环境因素，特别是盐度相关变量，是驱动适应分化的关键进化力量。以新发现的转录组为参考，最终获得了14个在盐度适应中可能起作用的功能基因，包括来自溶质载体基因（SLC）超家族的SLC5A1和SLC9C1基因。我们的研究结果证实，不同的当地环境可以迅速推动入侵种群之间的适应性差异，并在海洋入侵者中留下可检测的基因组特征。我们研究了高度侵袭性海鞘动物Molgula manhattensis快速局部适应的基因组特征。我们发现，当地环境因素，如盐度相关变量，代表了生物入侵期间驱动适应分化的关键进化力量。我们还发现了负责盐度适应的功能基因，如溶质载体基因（SLC）超家族的SLC5A1和SLC9C1基因。
Elucidating molecular mechanisms of environment‐driven adaptive evolution in marine invaders is crucial for understanding invasion success and further predicting their future invasions. Although increasing evidence suggests that adaptive evolution could contribute to organisms’ adaptation to varied environments, there remain knowledge gaps regarding how environments influence genomic variation in invaded habitats and genetic bases underlying local adaptation for most marine invaders. Here, we performed restriction‐site‐associated DNA sequencing (RADseq) to assess population genetic diversity and further investigate genomic signatures of local adaptation in the marine invasive ascidian, Molgula manhattensis. We revealed that most invasive populations exhibited significant genetic differentiation, low recent gene flow, and no signal of significant population bottleneck. Based on three genome scan approaches, we identified 109 candidate loci potentially under environmental selection. Redundancy analysis and variance partitioning analysis suggest that local environmental factors, particularly the salinity‐related variables, represent crucial evolutionary forces in driving adaptive divergence. Using the newly developed transcriptome as a reference, 14 functional genes were finally obtained with potential roles in salinity adaptation, including SLC5A1 and SLC9C1 genes from the solute carrier gene (SLC) superfamily. Our findings confirm that differed local environments could rapidly drive adaptive divergence among invasive populations and leave detectable genomic signatures in marine invaders. We investigated genomic signatures of rapid local adaptation in the highly invasive ascidian, Molgula manhattensis. We found that local environmental factors, such as salinity‐related variables, represented crucial evolutionary forces in driving adaptive divergence during biological invasions. We also identified functional genes responsible for salinity adaptation, such as SLC5A1 and SLC9C1 genes from the solute carrier gene (SLC) superfamily.
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最近范围扩展到恶劣环境期间的快速微进化
影响因子：
3.4
作者：
Chen, Yiyong;Shenkar, Noa;Zhan, Aibin
通讯作者：
Zhan, Aibin
影响因子：
7.7
作者：
Andrews KR;Adams JR;Cassirer EF;Plowright RK;Gardner C;Dwire M;Hohenlohe PA;Waits LP
通讯作者：
Waits LP
影响因子：
4.9
作者：
Benestan, Laura;Quinn, Brady K.;Bernatchez, Louis
通讯作者：
Bernatchez, Louis
DOI：
10.1111/evo.14029
发表时间：
2020-07
期刊：
Evolution; international journal of organic evolution
影响因子：
--
作者：
Batz ZA;Clemento AJ;Fritzenwanker J;Ring TJ;Garza JC;Armbruster PA
通讯作者：
Armbruster PA
影响因子：
3.3
作者：
Foll, Matthieu;Gaggiotti, Oscar
通讯作者：
Gaggiotti, Oscar