Patterns of abiotic niche shifts in allopolyploids relative to their progenitors.

摘要: Summary Polyploidy has extensive genetic, physiological, morphological, and ecological ramifications. While the patterns underlying genetic morphological consequences of polyploidy are being rapidly elucidated, effects on niche still largely unknown. This study investigated 13 allopolyploid systems in North America (10 ferns three angiosperms) using digitized natural history museum specimens. The abiotic niches allopolyploids were compared with those their diploid progenitors modeling, analyses, multivariate analyses. We identified four shifts through our analyses: expansion, contraction, intermediacy, novelty. classification these depended amount overlap breadth between polyploid progenitors. most common shift was intermediacy which inhabited a geographic range that had high degree overlap. Each at least partial sympatry one its progenitors, suggesting biotic and/or microclimate factors may play larger role establishment than previously hypothesized. This provides baseline for future comparisons diverse outcomes genome merger duplication preference.