SEX-BIASED GENE FLOW IN SPECTACLED EIDERS (ANATIDAE): INFERENCES FROM MOLECULAR MARKERS WITH CONTRASTING MODES OF INHERITANCE
Genetic markers that differ in mode of inheritance and rate of evolution (a sex-linked Z-specific microsatellite locus, five biparentally inherited microsatellite loci, and maternally inherited mitochondrial [mtDNA] sequences) were used to evaluate the degree of spatial genetic structuring at macro-...
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The Society for the Study of Evolution
2001
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ftbioone:10.1554/0014-3820(2001)055[2105:SBGFIS]2.0.CO;2 2023-07-30T04:04:42+02:00 SEX-BIASED GENE FLOW IN SPECTACLED EIDERS (ANATIDAE): INFERENCES FROM MOLECULAR MARKERS WITH CONTRASTING MODES OF INHERITANCE Kim T. Scribner Margaret R. Petersen Raymond L. Fields Sandra L. Talbot John M. Pearce Ronald K. Chesser Kim T. Scribner Margaret R. Petersen Raymond L. Fields Sandra L. Talbot John M. Pearce Ronald K. Chesser world 2001-10-01 text/HTML https://doi.org/10.1554/0014-3820(2001)055[2105:SBGFIS]2.0.CO;2 en eng The Society for the Study of Evolution doi:10.1554/0014-3820(2001)055[2105:SBGFIS]2.0.CO;2 All rights reserved. https://doi.org/10.1554/0014-3820(2001)055[2105:SBGFIS]2.0.CO;2 Text 2001 ftbioone https://doi.org/10.1554/0014-3820(2001)055[2105:SBGFIS]2.0.CO;2 2023-07-09T09:25:16Z Genetic markers that differ in mode of inheritance and rate of evolution (a sex-linked Z-specific microsatellite locus, five biparentally inherited microsatellite loci, and maternally inherited mitochondrial [mtDNA] sequences) were used to evaluate the degree of spatial genetic structuring at macro- and microgeographic scales, among breeding regions and local nesting populations within each region, respectively, for a migratory sea duck species, the spectacled eider (Somateria fisheri). Disjunct and declining breeding populations coupled with sex-specific differences in seasonal migratory patterns and life history provide a series of hypotheses regarding rates and directionality of gene flow among breeding populations from the Indigirka River Delta, Russia, and the North Slope and Yukon-Kuskokwim Delta, Alaska. The degree of differentiation in mtDNA haplotype frequency among breeding regions and populations within regions was high (ϕCT = 0.189, P 0.05; biparentally inherited microsatellites: mean θ = 0.001, P > 0.05) than was observed for mtDNA. Using models explicitly designed for uniparental and biparentally inherited genes, estimates of spatial divergence based on nuclear and mtDNA data together with elements of the species' breeding ecology were used to estimate effective population size and degree of male and female gene flow. Differences in the magnitude and spatial patterns of gene correlations for maternally inherited and nuclear genes revealed that females exhibit greater natal philopatry than do males. Estimates of generational female and male rates of gene flow among breeding regions differed markedly (3.67 × 10−4 and 1.28 × 10−2, respectively). Effective population size for mtDNA was estimated to be at least three times lower than that for biparental genes (30,671 and 101,528, respectively). Large disparities in population sizes among breeding areas greatly reduces the proportion of total genetic variance captured by dispersal, which may accelerate rates of inbreeding (i.e., promote higher ... Text Kuskokwim north slope Alaska Yukon BioOne Online Journals Indigirka ENVELOPE(149.609,149.609,70.929,70.929) Yukon |
institution |
Open Polar |
collection |
BioOne Online Journals |
op_collection_id |
ftbioone |
language |
English |
description |
Genetic markers that differ in mode of inheritance and rate of evolution (a sex-linked Z-specific microsatellite locus, five biparentally inherited microsatellite loci, and maternally inherited mitochondrial [mtDNA] sequences) were used to evaluate the degree of spatial genetic structuring at macro- and microgeographic scales, among breeding regions and local nesting populations within each region, respectively, for a migratory sea duck species, the spectacled eider (Somateria fisheri). Disjunct and declining breeding populations coupled with sex-specific differences in seasonal migratory patterns and life history provide a series of hypotheses regarding rates and directionality of gene flow among breeding populations from the Indigirka River Delta, Russia, and the North Slope and Yukon-Kuskokwim Delta, Alaska. The degree of differentiation in mtDNA haplotype frequency among breeding regions and populations within regions was high (ϕCT = 0.189, P 0.05; biparentally inherited microsatellites: mean θ = 0.001, P > 0.05) than was observed for mtDNA. Using models explicitly designed for uniparental and biparentally inherited genes, estimates of spatial divergence based on nuclear and mtDNA data together with elements of the species' breeding ecology were used to estimate effective population size and degree of male and female gene flow. Differences in the magnitude and spatial patterns of gene correlations for maternally inherited and nuclear genes revealed that females exhibit greater natal philopatry than do males. Estimates of generational female and male rates of gene flow among breeding regions differed markedly (3.67 × 10−4 and 1.28 × 10−2, respectively). Effective population size for mtDNA was estimated to be at least three times lower than that for biparental genes (30,671 and 101,528, respectively). Large disparities in population sizes among breeding areas greatly reduces the proportion of total genetic variance captured by dispersal, which may accelerate rates of inbreeding (i.e., promote higher ... |
author2 |
Kim T. Scribner Margaret R. Petersen Raymond L. Fields Sandra L. Talbot John M. Pearce Ronald K. Chesser |
format |
Text |
author |
Kim T. Scribner Margaret R. Petersen Raymond L. Fields Sandra L. Talbot John M. Pearce Ronald K. Chesser |
spellingShingle |
Kim T. Scribner Margaret R. Petersen Raymond L. Fields Sandra L. Talbot John M. Pearce Ronald K. Chesser SEX-BIASED GENE FLOW IN SPECTACLED EIDERS (ANATIDAE): INFERENCES FROM MOLECULAR MARKERS WITH CONTRASTING MODES OF INHERITANCE |
author_facet |
Kim T. Scribner Margaret R. Petersen Raymond L. Fields Sandra L. Talbot John M. Pearce Ronald K. Chesser |
author_sort |
Kim T. Scribner |
title |
SEX-BIASED GENE FLOW IN SPECTACLED EIDERS (ANATIDAE): INFERENCES FROM MOLECULAR MARKERS WITH CONTRASTING MODES OF INHERITANCE |
title_short |
SEX-BIASED GENE FLOW IN SPECTACLED EIDERS (ANATIDAE): INFERENCES FROM MOLECULAR MARKERS WITH CONTRASTING MODES OF INHERITANCE |
title_full |
SEX-BIASED GENE FLOW IN SPECTACLED EIDERS (ANATIDAE): INFERENCES FROM MOLECULAR MARKERS WITH CONTRASTING MODES OF INHERITANCE |
title_fullStr |
SEX-BIASED GENE FLOW IN SPECTACLED EIDERS (ANATIDAE): INFERENCES FROM MOLECULAR MARKERS WITH CONTRASTING MODES OF INHERITANCE |
title_full_unstemmed |
SEX-BIASED GENE FLOW IN SPECTACLED EIDERS (ANATIDAE): INFERENCES FROM MOLECULAR MARKERS WITH CONTRASTING MODES OF INHERITANCE |
title_sort |
sex-biased gene flow in spectacled eiders (anatidae): inferences from molecular markers with contrasting modes of inheritance |
publisher |
The Society for the Study of Evolution |
publishDate |
2001 |
url |
https://doi.org/10.1554/0014-3820(2001)055[2105:SBGFIS]2.0.CO;2 |
op_coverage |
world |
long_lat |
ENVELOPE(149.609,149.609,70.929,70.929) |
geographic |
Indigirka Yukon |
geographic_facet |
Indigirka Yukon |
genre |
Kuskokwim north slope Alaska Yukon |
genre_facet |
Kuskokwim north slope Alaska Yukon |
op_source |
https://doi.org/10.1554/0014-3820(2001)055[2105:SBGFIS]2.0.CO;2 |
op_relation |
doi:10.1554/0014-3820(2001)055[2105:SBGFIS]2.0.CO;2 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1554/0014-3820(2001)055[2105:SBGFIS]2.0.CO;2 |
_version_ |
1772816280075632640 |