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7 results for “Mimulus ringens”
Data from: Floral color variation across life history and geography in Mimulus ringens (Phrymaceae)
<p>With these data, we explore the possibility that both floral color and life history have shifted together in a recently described, genetically distinct group within the species <em>Mimulus ringens</em>. Using a large, range-wide citizen science dataset, we test for geographic trends in flower color and flowering time. We combine this with greenhouse studies in populations of known life history to test for differences in flower color with life history. We show that darker-flowered plants are more common at higher latitudes, that annual-like populations have darker flowers, and that flowering time varies with latitude only in the subset of populations that have lighter flowers. This suggests that annual-like populations (with the earlier flowering time typical of this life history) are restricted to the northern part of the species range, and likely arose there. </p>
Data from: Variation in seasonal timing traits and life history along a latitudinal transect in Mimulus ringens
<p>Seasonal timing traits are commonly under recurrent, spatially-variable selection, and are therefore predicted to exhibit clinal variation. Temperate perennial plants often require vernalization to prompt growth and reproduction; however, little is known about whether vernalization requirements change across the range of a broadly distributed species. We performed a critical vernalization duration study in <i>Mimulus ringens, </i>coupled with population genomic analysis. Plants from 8 populations spanning the latitudinal range were exposed to varying durations of 4°C vernalization between 0-56 days, and flowering response was assessed. RADSeq was also performed to generate 1,179 polymorphic SNPs, which were used to examine population structure. We found unexpected life history variation, with some populations lacking vernalization requirement. Population genomic analyses show that these life history variants are highly divergent from perennials, potentially revealing a cryptic species. For perennial populations, minimum vernalization time was surprisingly consistent. However, once vernalized, northern populations flowered almost 3 weeks faster than southern. Further, southern populations exhibited sensitivity to vernalization times beyond flowering competency, suggesting an ability to respond adaptively to different lengths of winter. <i>M. ringens</i> therefore reveals evidence of clinal variation, and provides opportunities for future studies addressing mechanistic and ecological hypotheses both within and between incipient species.</p>
Data from: Floral color variation across life history and geography in Mimulus ringens (Phrymaceae)
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Data from: Variation in seasonal timing traits and life history along a latitudinal transect in Mimulus ringens
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Selfing rate variation among natural populations of Mimulus ringens
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Data from: Characterization of 42 polymorphic microsatellite loci in Mimulus ringens (Phrymaceae) using Illumina sequencing
Premise of the study: Microsatellite markers were isolated and characterized in Mimulus ringens (Phrymaceae), a herbaceous wetland perennial, to facilitate studies of mating patterns and population genetic structure. Methods and Results: A total of 42 polymorphic loci were identified from a sample of 24 individuals from a single popula- tion in Ohio, USA. The number of alleles per locus ranged from two to nine, and median observed heterozygosity was 0.435. Conclusions: This large number of polymorphic loci will enable researchers to quantify male fitness, patterns of multiple pa- ternity, selfing, and biparental inbreeding in large natural populations of this species. These markers will also permit detailed study of fine-scale patterns of genetic structure.
Data from: Characterization of 42 polymorphic microsatellite loci in Mimulus ringens (Phrymaceae) using Illumina sequencing
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OpenNeuro
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