Major patterns in the introgression history of Heliconius butterflies DOI Open Access
Yuttapong Thawornwattana, Fernando Seixas, Ziheng Yang

et al.

Published: Nov. 22, 2023

Gene flow between species is an important evolutionary process that can facilitate adaptation and lead to diversification. It also makes reconstruction of relationships difficult. Here, we use the full-likelihood multispecies coalescent (MSC) approach estimate phylogeny major introgression events in Heliconius butterflies from whole-genome sequence data. We obtain a robust branching order among clades genus, including “melpomene-silvaniform” group, which shows extensive historical on-going gene flow. chromosome-level estimates key parameters phylogeny, divergence times, present-day ancestral population sizes as well direction, timing, intensity Our analysis leads with differ those obtained previous studies. find H. aoede most likely represents earliest-branching lineage genus “silvaniform” are paraphyletic within melpomene-silvaniform group. provides new, parsimonious histories for origins traits , pollen feeding inversion involved wing pattern mimicry. results demonstrate power feasibility MSC estimating despite The methods used here should be useful other difficult groups high rates introgression.

Language: Английский

Genomic Footprints of Hybridisation in North Atlantic Eels (Anguilla anguilla and A. rostrata) DOI Creative Commons
Aja Noersgaard Buur Tengstedt, Shenglin Liu, Magnus W. Jacobsen

et al.

Molecular Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

ABSTRACT Understanding interspecific introgressive hybridisation and the biological significance of introgressed variation remains an important goal in population genomics. European ( Anguilla anguilla ) American eel A. rostrata represent a remarkable case hybridisation. Both are panmictic spawn partial sympatry Sargasso Sea, occasionally producing viable, fertile hybrids, primarily found Iceland. We studied from into using whole‐genome sequences 78 individuals, including European, 21 putative hybrid eels. Previous studies few genetic markers could not resolve whether involved simple unidirectional backcrossing or more complex swarm scenario. However, local ancestry inference along individual chromosomes revealed that Icelandic hybrids were F1 first‐generation backcrosses towards eel, with some showing backcrossing. All eels outside Iceland contained short chromosomal blocks indicating porous genome. no evidence for previously hypothesised geographical gradients introgression Several regions showed high divergence, but haplotype identified both within these regions. There was little correspondence between relative F ST absolute divergence d XY ), former reflecting selective sweeps species reduced recombination rather than barrier loci. A single genomic region repeated under positive selection species. The study illustrates can maintain integrity despite genomes standing one potentially be available future adaptive responses other

Language: Английский

Citations

1
Mating strategy does not affect the diversification of abdominal chemicals in Heliconiini butterflies DOI Creative Commons
Bruna Cama, Stephanie Ehlers,

Harriet O’Roarty

et al.

Chemoecology, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

Language: Английский

Citations

0
Major patterns in the introgression history of Heliconius butterflies DOI Creative Commons
Yuttapong Thawornwattana, Fernando Seixas, Ziheng Yang

et al.

eLife, Journal Year: 2023, Volume and Issue: 12

Published: Sept. 11, 2023

Gene flow between species, although usually deleterious, is an important evolutionary process that can facilitate adaptation and lead to species diversification. It also makes estimation of relationships difficult. Here, we use the full-likelihood multispecies coalescent (MSC) approach estimate phylogeny major introgression events in Heliconius butterflies from whole-genome sequence data. We obtain a robust branching order among clades genus, including ‘melpomene-silvaniform’ group, which shows extensive historical ongoing gene flow. chromosome-level estimates key parameters phylogeny, divergence times, present-day ancestral population sizes, as well direction, timing, intensity Our analysis leads with differ those obtained previous studies. find aoede most likely represents earliest-branching lineage genus ‘silvaniform’ are paraphyletic within melpomene-silvaniform group. provides new, parsimonious histories for origins traits , pollen feeding inversion involved wing pattern mimicry. results demonstrate power feasibility MSC estimating despite The methods used here should be useful other difficult groups high rates introgression.

Language: Английский

Citations

4
Major patterns in the introgression history of Heliconius butterflies DOI Creative Commons
Yuttapong Thawornwattana, Fernando Seixas, Ziheng Yang

et al.

eLife, Journal Year: 2023, Volume and Issue: 12

Published: Dec. 18, 2023

Gene flow between species, although usually deleterious, is an important evolutionary process that can facilitate adaptation and lead to species diversification. It also makes estimation of relationships difficult. Here, we use the full-likelihood multispecies coalescent (MSC) approach estimate phylogeny major introgression events in Heliconius butterflies from whole-genome sequence data. We obtain a robust branching order among clades genus, including ‘melpomene-silvaniform’ group, which shows extensive historical ongoing gene flow. chromosome-level estimates key parameters phylogeny, divergence times, present-day ancestral population sizes, as well direction, timing, intensity Our analysis leads with differ those obtained previous studies. find aoede most likely represents earliest-branching lineage genus ‘silvaniform’ are paraphyletic within melpomene-silvaniform group. provides new, parsimonious histories for origins traits , pollen feeding inversion involved wing pattern mimicry. results demonstrate power feasibility MSC estimating despite The methods used here should be useful other difficult groups high rates introgression.

Language: Английский

Citations

3
Major patterns in the introgression history ofHeliconiusbutterflies DOI Creative Commons
Yuttapong Thawornwattana, Fernando Seixas, Ziheng Yang

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: June 23, 2023

A bstract Gene flow between species is an important evolutionary process that can facilitate adaptation and lead to diversification. It also makes reconstruction of relationships difficult. Here, we use the full-likelihood multispecies coalescent (MSC) approach estimate phylogeny major introgression events in Heliconius butterflies from whole-genome sequence data. We obtain a robust branching order among clades genus, including “melpomene-silvaniform” group, which shows extensive historical on-going gene flow. chromosome-level estimates key parameters phylogeny, divergence times, present-day ancestral population sizes as well direction, timing, intensity Our analysis leads with differ those obtained previous studies. find H. aoede most likely represents earliest-branching lineage genus “silvaniform” are paraphyletic within melpomene-silvaniform group. provides new, parsimonious histories for origins traits , pollen feeding inversion involved wing pattern mimicry. results demonstrate power feasibility MSC estimating despite The methods used here should be useful other difficult groups high rates introgression.

Language: Английский

Citations

0
Major patterns in the introgression history of Heliconius butterflies DOI Open Access
Yuttapong Thawornwattana, Fernando Seixas, Ziheng Yang

et al.

Published: Nov. 22, 2023

Gene flow between species is an important evolutionary process that can facilitate adaptation and lead to diversification. It also makes reconstruction of relationships difficult. Here, we use the full-likelihood multispecies coalescent (MSC) approach estimate phylogeny major introgression events in Heliconius butterflies from whole-genome sequence data. We obtain a robust branching order among clades genus, including “melpomene-silvaniform” group, which shows extensive historical on-going gene flow. chromosome-level estimates key parameters phylogeny, divergence times, present-day ancestral population sizes as well direction, timing, intensity Our analysis leads with differ those obtained previous studies. find H. aoede most likely represents earliest-branching lineage genus “silvaniform” are paraphyletic within melpomene-silvaniform group. provides new, parsimonious histories for origins traits , pollen feeding inversion involved wing pattern mimicry. results demonstrate power feasibility MSC estimating despite The methods used here should be useful other difficult groups high rates introgression.

Language: Английский

Citations

0