Microgeographic Adaptation to Temperature in Pitch Pine Progenies

Steiner, Kim C.; Berrang, P.

doi:10.2307/2426557

Cited by 9 publications

(6 citation statements)

References 28 publications

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“…Elucidating such processes thus requires further empirical research on species displaying evident diversification at fine spatial scales. Given that some of the best examples of microgeographic adaptation involve mainly sedentary organisms such as plants (Steiner & Berrang, 1990; Antonovics, 2006; Hendrick et al, 2016), we aimed to investigate such processes in a more mobile organism, wherein the signal of microgeographic adaptation may be less evident and underappreciated as a factor affecting the rate of diversification under gene flow.…”

Section: Introductionmentioning

confidence: 99%

Genomic differentiation and local adaptation on a microgeographic scale in a resident songbird

et al. 2020

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Elucidating forces capable of driving species diversification in the face of gene flow remains a key goal in evolutionary biology. Song sparrows, Melospiza melodia, occur as 25 subspecies in diverse habitats across North America, are among the continent's most widespread vertebrate species, and are exemplary of many highly variable species for which the conservation of locally adapted populations may be critical to their range‐wide persistence. We focus here on six morphologically distinct subspecies resident in the San Francisco Bay region, including three salt‐marsh endemics and three residents in upland and riparian habitats adjacent to the Bay. We used reduced‐representation sequencing to generate 2,773 SNPs to explore genetic differentiation, spatial population structure, and demographic history. Clustering separated individuals from each of the six subspecies, indicating subtle differentiation at microgeographic scales. Evidence of limited gene flow and low nucleotide diversity across all six subspecies further supports a hypothesis of isolation among locally adapted populations. We suggest that natural selection for genotypes adapted to salt marsh environments and changes in demography over the past century have acted in concert to drive the patterns of diversification reported here. Our results offer evidence of microgeographic specialization in a highly polytypic bird species long discussed as a model of sympatric speciation and rapid adaptation, and they support the hypothesis that conserving locally adapted populations may be critical to the range‐wide persistence of similarly highly variable species.

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Section: Introductionmentioning

confidence: 99%

Genomic differentiation and local adaptation on a microgeographic scale in a resident songbird

et al. 2020

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“…Good and Good (1975) in a greenhouse/nursery experiment with New Jersey P. rigida found that seedlings originating from dwarf populations were shorter, had less biomass, and reproduced earlier than seedlings originating from normal-stature populations. Using a commongarden approach, Steiner and Berrang (1990) found greater cold tolerance in P. rigida seedlings originating from a localized ''cold pocket'' depression in Pennsylvania than in seedlings originating from nearby, warmer habitats.…”

Section: Discussionmentioning

confidence: 96%

Sources of variation in growth, form, and survival in dwarf and normal‐stature pitch pines (Pinus rigida, Pinaceae) in long‐term transplant experiments

Fang

Taub

Fox

et al. 2006

American J of Botany

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Determining the relative contributions of genetic and environmental factors to phenotypic variation is critical for understanding the evolutionary ecology of plant species, but few studies have examined the sources of phenotypic differentiation between nearby populations of woody plants. We conducted reciprocal transplant experiments to examine sources of variation in growth rate, form, survival, and maturation in a globally rare dwarf population of pitch pine (Pinus rigida) and in surrounding populations of normal-stature pitch pines on Long Island, New York. Transplants were monitored over a 6-yr period. The influence of seedling origin on height, growth rate, survival, and form (single-stemmed vs. multi-stemmed growth habit) was much smaller than the effect of transplanting location. Both planting site and seed origin were important factors in determining time to reproduction; seedlings originating from dwarf populations and seedlings planted at the normal-stature site reproduced earliest. These results suggest that many of the differences between dwarf and normal-stature pitch pines may be due more to plastic responses to environmental factors than to genetic differentiation among populations. Therefore, preservation of the dwarf pine habitat is essential for preserving dwarf pine communities; the dwarf pines cannot be preserved ex situ.

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“…This assumption is supported by various empirical fi ndings (Nosil & Crespi, 2004). However, Richardson & Urban (2013) suggest that some studies seriously challenge the presumption that local adaptation occurs only at large geographical scales (Steiner & Berrang, 1990;Kavanagh et al, 2010;Willi & Hoffmann, 2012;Richardson et al, 2014). There is, therefore, accumulating evidence that we should revise theoretical presumptions of local adaptation in terms of spatial scale.…”

Section: Population Samples and Microhabitat Characteristics At The Lmentioning

confidence: 99%

Local adaptation at fine spatial scale through chromosomal inversions and mito-nuclear epistasis: Findings in Drosophila subobscura (Diptera: Drosophilidae)

Veselinovic¹,

Novičić²,

Kenig³

et al. 2019

Eur. J. Entomol.

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Microgeographic Adaptation to Temperature in Pitch Pine Progenies

Cited by 9 publications

References 28 publications

Genomic differentiation and local adaptation on a microgeographic scale in a resident songbird

Genomic differentiation and local adaptation on a microgeographic scale in a resident songbird

Sources of variation in growth, form, and survival in dwarf and normal‐stature pitch pines (Pinus rigida, Pinaceae) in long‐term transplant experiments

Local adaptation at fine spatial scale through chromosomal inversions and mito-nuclear epistasis: Findings in Drosophila subobscura (Diptera: Drosophilidae)

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