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  • Rapid evolution predicts demographic recovery after extreme drought . . .
    Rapid evolution then predicted differences in demographic recovery Furthermore, populations harboring higher levels of nucleotide diversity at climate-associated SNPs before the drought also had higher population recovery after drought, which implicates adaptation from standing variation
  • Rapid evolution predicts demographic recovery after extreme drought
    Here we link rapid evolution and population dynamics in scarlet monkeyflower, Mimulus cardinalis, during exceptional drought We leverage whole-genome sequencing across 55 populations to identify climate-associated loci
  • 快速进化预示着极度干旱后种群数量得以恢复—小柯机器人 . . .
    These findings demonstrate the possibility of evolutionary rescue in the wild, showing that genetic variation at adaptive, but not neutral, loci predicts population recovery
  • Rapid evolution predicts demographic recovery after extreme drought . . .
    We study the climatic differences that contribute to rapid evolution throughout a seven-year period encompassing a severe drought across 12 populations of Mimulus cardinalis (scarlet
  • Rapid evolution predicts demographic recovery after extreme drought
    Populations that are declining as a result of climate change may need to evolve to persist although evolutionary rescue has been demonstrated in theory and in the laboratory, its relevance to natural populations facing climate change remains unknown here we link rapid evolution and population dynamics in scarlet monkeyflower, Mimulus cardinalis, during exceptional drought We leverage whole
  • Science | 极端天气频发，气候变化压力下，自然种群能否 . . .
    本文研究了猩红猴面花（Mimulus cardinalis）在极端干旱期间的快速进化与种群动态之间的关系。 我们利用55个种群的全基因组测序来识别与气候相关的基因位点。 同时，我们追踪了整个干旱期间种群数量和等位基因频率的变化。 我们发现，干旱期间种群数量普遍下降，快速进化在地理分布上存在差异，而种群恢复情况则因气候相关基因位点的遗传变异及其快速进化而有所不同。 这些发现表明，进化拯救在自然界中是可能的，适应性基因位点（而非中性基因位点）的遗传变异可以预测种群恢复情况。 研究进展 气候变化由于极端事件的强度和持续时间不断增加，正导致种群数量下降。 逆转这种下降可能依赖于进化性拯救，即通过进化实现种群数量的恢复。
  • 【Science重磅】极端干旱后，植物会快速进化恢复群体 . . .
    该研究首先通过分析19个种群在干旱前、干旱期和干旱后的野外调查数据，发现大多数种群在极端干旱期间经历了显著的种群衰退，种群增长率与冬季降水异常呈正相关，证实了干旱是导致衰退的主要驱动力。 然后进一步通过全基因组测序，研究团队首先利用55个种群的基线样本鉴定了与历史气候（1980-2009）相关的215个单核苷酸多态性位点。 在此基础上，通过对11个种群的年度时间序列样本进行追踪，发现在干旱期间，部分种群中与温暖干旱环境相关的等位基因频率显著上升，且这种变化超出了遗传漂变的预期，表明自然选择驱动了快速进化。 同时，与等位基因频率变化方向一致的种群还表现出光合速率提高、气孔导度降低等生理性状的适应性进化。
  • Rapid evolution predicts demographic recovery after extreme drought . . .
    These findings demonstrate the possibility of evolutionary rescue in the wild, showing that genetic variation at adaptive, but not neutral, loci predicts population recovery
  • Rapid evolution during climate change: demographic and genetic . . .
    We combined long-term demographic and environmental data, estimates of quantitative genetic variance components, a resurrection experiment and individual-based evolutionary simulations to gain mechanistic insights into contrasting evolutionary responses to a severe multi-year drought





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