Supplementary material from "Genetic diversity, demographic history and neo-sex chromosomes in the critically endangered Raso lark" ...
Small effective population sizes could expose island species to inbreeding and loss of genetic variation. Here, we investigate factors shaping genetic diversity in the Raso lark, which has been restricted to a single islet for approximately 500 years, with a population size of a few hundred. We asse...
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The Royal Society
2020
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Online Access: | https://dx.doi.org/10.6084/m9.figshare.c.4860630.v1 https://rs.figshare.com/collections/Supplementary_material_from_Genetic_diversity_demographic_history_and_neo-sex_chromosomes_in_the_critically_endangered_Raso_lark_/4860630/1 |
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ftdatacite:10.6084/m9.figshare.c.4860630.v1 2024-04-28T08:18:07+00:00 Supplementary material from "Genetic diversity, demographic history and neo-sex chromosomes in the critically endangered Raso lark" ... Dierickx, Elisa Sin, Simon van Veelen, Pieter Brooke, M. de L. Liu, Yang Edwards, Scott Martin, Simon 2020 https://dx.doi.org/10.6084/m9.figshare.c.4860630.v1 https://rs.figshare.com/collections/Supplementary_material_from_Genetic_diversity_demographic_history_and_neo-sex_chromosomes_in_the_critically_endangered_Raso_lark_/4860630/1 unknown The Royal Society https://dx.doi.org/10.6084/m9.figshare.c.4860630 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Collection article 2020 ftdatacite https://doi.org/10.6084/m9.figshare.c.4860630.v110.6084/m9.figshare.c.4860630 2024-04-02T11:58:34Z Small effective population sizes could expose island species to inbreeding and loss of genetic variation. Here, we investigate factors shaping genetic diversity in the Raso lark, which has been restricted to a single islet for approximately 500 years, with a population size of a few hundred. We assembled a reference genome for the related Eurasian skylark and then assessed diversity and demographic history using RAD-seq data (75 samples from Raso larks and two related mainland species). We first identify broad tracts of suppressed recombination in females, indicating enlarged neo-sex chromosomes. We then show that genetic diversity across autosomes in the Raso lark is lower than in its mainland relatives, but inconsistent with long-term persistence at its current population size. Finally, we find that genetic signatures of the recent population contraction are overshadowed by an ancient expansion and persistence of a very large population until the human settlement of Cape Verde. Our findings show how ... Article in Journal/Newspaper Eurasian Skylark DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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unknown |
description |
Small effective population sizes could expose island species to inbreeding and loss of genetic variation. Here, we investigate factors shaping genetic diversity in the Raso lark, which has been restricted to a single islet for approximately 500 years, with a population size of a few hundred. We assembled a reference genome for the related Eurasian skylark and then assessed diversity and demographic history using RAD-seq data (75 samples from Raso larks and two related mainland species). We first identify broad tracts of suppressed recombination in females, indicating enlarged neo-sex chromosomes. We then show that genetic diversity across autosomes in the Raso lark is lower than in its mainland relatives, but inconsistent with long-term persistence at its current population size. Finally, we find that genetic signatures of the recent population contraction are overshadowed by an ancient expansion and persistence of a very large population until the human settlement of Cape Verde. Our findings show how ... |
format |
Article in Journal/Newspaper |
author |
Dierickx, Elisa Sin, Simon van Veelen, Pieter Brooke, M. de L. Liu, Yang Edwards, Scott Martin, Simon |
spellingShingle |
Dierickx, Elisa Sin, Simon van Veelen, Pieter Brooke, M. de L. Liu, Yang Edwards, Scott Martin, Simon Supplementary material from "Genetic diversity, demographic history and neo-sex chromosomes in the critically endangered Raso lark" ... |
author_facet |
Dierickx, Elisa Sin, Simon van Veelen, Pieter Brooke, M. de L. Liu, Yang Edwards, Scott Martin, Simon |
author_sort |
Dierickx, Elisa |
title |
Supplementary material from "Genetic diversity, demographic history and neo-sex chromosomes in the critically endangered Raso lark" ... |
title_short |
Supplementary material from "Genetic diversity, demographic history and neo-sex chromosomes in the critically endangered Raso lark" ... |
title_full |
Supplementary material from "Genetic diversity, demographic history and neo-sex chromosomes in the critically endangered Raso lark" ... |
title_fullStr |
Supplementary material from "Genetic diversity, demographic history and neo-sex chromosomes in the critically endangered Raso lark" ... |
title_full_unstemmed |
Supplementary material from "Genetic diversity, demographic history and neo-sex chromosomes in the critically endangered Raso lark" ... |
title_sort |
supplementary material from "genetic diversity, demographic history and neo-sex chromosomes in the critically endangered raso lark" ... |
publisher |
The Royal Society |
publishDate |
2020 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.4860630.v1 https://rs.figshare.com/collections/Supplementary_material_from_Genetic_diversity_demographic_history_and_neo-sex_chromosomes_in_the_critically_endangered_Raso_lark_/4860630/1 |
genre |
Eurasian Skylark |
genre_facet |
Eurasian Skylark |
op_relation |
https://dx.doi.org/10.6084/m9.figshare.c.4860630 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.6084/m9.figshare.c.4860630.v110.6084/m9.figshare.c.4860630 |
_version_ |
1797582297623429120 |