极端干旱下的野生花朵种群进化拯救

Rapid evolution predicts demographic recovery after extreme drought Daniel N. Anstett1,2,3,4,5*, Julia Anstett2,6,7, Seema N. Sheth8, Dylan R. Moxley1,9, Haley A. Branch1,10, Mojtaba Jahani1,11, Kaichi Huang1,12, Marco Todesco1,9,13, Rebecca Jordan14, Jose Miguel Lazaro-Guevara1,15,16, Loren H. Rieseberg1, Amy L. Angert1,17 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-genome sequencing across 55 populations to identify climate-associated loci. Simultaneously we track demography and allele frequency change throughout the drought. …