Copy number variation ( CNV ) is a major part of the genetic diversity segregating within populations, but remains poorly understood relative to single nucleotide variation. Here, we report on a tRNA ligase gene (Migut.N02091; RLG 1a) exhibiting unprecedented, and fitness‐relevant, CNV within an annual population of the yellow monkeyflower Mimulus guttatus . RLG 1a variation was associated with multiple traits in pooled popula...

Microgeographic adaptation provides a particularly interesting context for understanding the genetic basis of phenotypic divergence and may also present unique empirical challenges. In particular, plant adaptation to extreme soil mosaics may generate barriers to gene flow or shifts in mating system that confound simple genomic scans for adaptive loci. Here, we combine three approaches – quantitative trait locus (QTL) mapping o...