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Data from: The evolution of environmental tolerance and range size: a comparison of geographically restricted and widespread Mimulus
- 负责人：
- DOI：
- doi:10.5061/dryad.2b906
- 摘要：
- The geographic ranges of closely related species can vary dramatically, yet we do not fully grasp the mechanisms underlying such variation. The niche breadth hypothesis posits that species that have evolved broad environmental tolerances can achieve larger geographic ranges than species with narrow environmental tolerances. In turn, plasticity and genetic variation in ecologically important traits and adaptation to environmentally variable areas can facilitate the evolution of broad environmental tolerance. We used five pairs of western North American monkeyflowers to experimentally test these ideas by quantifying performance across eight temperature regimes. In four species pairs, species with broader thermal tolerances had larger geographic ranges, supporting the niche breadth hypothesis. As predicted, species with broader thermal tolerances also had more within-population genetic variation in thermal reaction norms and experienced greater thermal variation across their geographic ranges than species with narrow thermal tolerances. Species with narrow thermal tolerance may be particularly vulnerable to changing climatic conditions due to lack of plasticity and insufficient genetic variation to respond to novel selection pressures. Conversely, species experiencing high variation in temperature across their ranges may be buffered against extinction due to climatic changes because they have evolved tolerance to a broad range of temperatures.
Data from: Digest: trait variation in Mimulus provides new evidence for the joint action of ecological sorting and character displacement
- 负责人：
- DOI：
- doi:10.5061/dryad.58fh6
- 摘要：
- hypothesis is that the evolution of key differences in species’ niches or ecological requirements (a process known as niche differentiation) can minimi
Data from: Speciation by genome duplication: repeated origins and genomic composition of the recently formed allopolyploid species Mimulus peregrinus
- 负责人：
- DOI：
- doi:10.5061/dryad.gg273
- 摘要：
- w polyploid hybrid (allopolyploid) species Mimulus peregrinus, formed within the last 140 years, was recently discovered on the Scottish mainland
Data from: Hybridisation and genetic diversity in introduced Mimulus (Phrymaceae)
- 负责人：
- DOI：
- doi:10.5061/dryad.mj5gb
- 摘要：
- taxon resulting from hybridisation between diploid Mimulus guttatus and tetraploid Mimulus luteus, two species that were introduced int
Data from: Speciation and introgression between Mimulus nasutus and Mimulus guttatus
- 负责人：
- DOI：
- doi:10.5061/dryad.vp645
- 摘要：
- Mimulus guttatus and M. nasutus are an evolutionary and ecological model sister species pair differentiated by ecology, mating system, and partial
Data from: Disruption of endosperm development is a major cause of hybrid seed inviability between Mimulus guttatus and Mimulus nudatus
- 负责人：
- DOI：
- doi:10.5061/dryad.64dh3
- 摘要：
- in angiosperms. We investigate patterns of endosperm and embryo development in Mimulus guttatus and the closely related, serpentine endemic Mimulus nudatus
Data from: Strongly asymmetric hybridization barriers shape the origin of a new polyploid species and its hybrid ancestor
- 负责人：
- DOI：
- doi:10.5061/dryad.5q91d
- 摘要：
- . Here we investigated the evolutionary origins of Mimulus peregrinus, an allohexaploid recently derived from the triploid M. ×robertsii, to determi
Data from: Divergence in drought-response traits between sympatric species of Mimulus
- 负责人：
- 关键词：
- Sympatry;drought;flowering time;ecological isolation.;Mimulus nasutus;Mimulus guttatus;speciation
- DOI：
- doi:10.5061/dryad.6dh476h
- 摘要：
- ted Mimulus species – M. guttatus and M. nasutus – occupy distinct microhabitats that differ in seasonal water availability. In a common garden experiment
Data from: Differential adaptation to a harsh granite outcrop habitat between sympatric Mimulus species
- 负责人：
- DOI：
- doi:10.5061/dryad.5gh4486
- 摘要：
- ltaneously as populations or species diverge. Here we investigate the ecological variables and traits that underlie Mimulus laciniatus’ adaptation to granite outcrops
Data from: Reproductive isolation and introgression between sympatric Mimulus species
- 负责人：
- DOI：
- doi:10.5061/dryad.6p8p0
- 摘要：
- , admixture and genomic divergence between populations of the outcrossing wildflower Mimulus guttatus and selfing M. nasutus. Focusing on a single site wher
