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Low GW, Pavlova A, Gan HM, Ko MC, Sadanandan KR, Lee YP, Amos JN, Austin L, Falk S, Dowling DK, Sunnucks P. Accelerated differentiation of neo-W nuclear-encoded mitochondrial genes between two climate-associated bird lineages signals potential co-evolution with mitogenomes. Heredity (Edinb) 2024:10.1038/s41437-024-00718-w. [PMID: 39174672 DOI: 10.1038/s41437-024-00718-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 08/11/2024] [Accepted: 08/12/2024] [Indexed: 08/24/2024] Open
Abstract
There is considerable evidence for mitochondrial-nuclear co-adaptation as a key evolutionary driver. Hypotheses regarding the roles of sex-linkage have emphasized Z-linked nuclear genes with mitochondrial function (N-mt genes), whereas it remains contentious whether the perfect co-inheritance of W genes with mitogenomes could hinder or facilitate co-adaptation. Young (neo-) sex chromosomes that possess relatively many N-mt genes compared to older chromosomes provide unprecedented hypothesis-testing opportunities. Eastern Yellow Robin (EYR) lineages in coastal and inland habitats with different climates are diverged in mitogenomes, and in a ~ 15.4 Mb nuclear region enriched with N-mt genes, in contrast with otherwise-similar nuclear genomes. This nuclear region maps to passerine chromosome 1A, previously found to be neo-sex in the inland EYR genome. To compare sex-linked Chr1A-derived genes between lineages, we assembled and annotated the coastal EYR genome. We found that: (i) the coastal lineage shares a similar neo-sex system with the inland lineage, (ii) neo-W and neo-Z N-mt genes are not more diverged between lineages than are comparable non-N-mt genes, and showed little evidence for broad positive selection, (iii) however, W-linked N-mt genes are more diverged between lineages than are their Z-linked gametologs. The latter effect was ~7 times stronger for N-mt than non-N-mt genes, suggesting that W-linked N-mt genes might have diverged between lineages under environmental selection through co-evolution with mitogenomes. Finally, we identify a candidate gene driver for divergent selection, NDUFA12. Our data represent a rare example suggesting a possible role for W-associated mitochondrial-nuclear interactions in climate-associated adaptation and lineage differentiation.
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Affiliation(s)
- Gabriel Weijie Low
- School of Biological Sciences, Monash University, Melbourne, VIC 3800, Australia.
- Evolution of Sensory and Physiological Systems, Max Planck Institute for Biological Intelligence, 82319, Seewiesen, Germany.
- National Parks Board, 1 Cluny Road, Singapore Botanical Gardens, Singapore, 259569, Singapore.
| | - Alexandra Pavlova
- School of Biological Sciences, Monash University, Melbourne, VIC 3800, Australia
| | - Han Ming Gan
- Deakin Genomics Centre, Deakin University, Geelong, VIC 3220, Australia
- Patriot Biotech Sdn Bhd, 47500, Subang Jaya, Selangor, Malaysia
| | - Meng-Ching Ko
- Evolution of Sensory and Physiological Systems, Max Planck Institute for Biological Intelligence, 82319, Seewiesen, Germany
| | - Keren R Sadanandan
- Evolution of Sensory and Physiological Systems, Max Planck Institute for Biological Intelligence, 82319, Seewiesen, Germany
| | - Yin Peng Lee
- Deakin Genomics Centre, Deakin University, Geelong, VIC 3220, Australia
- School of Life and Environmental Sciences, Deakin University, Geelong, VIC 3220, Australia
| | - J Nevil Amos
- School of Biological Sciences, Monash University, Melbourne, VIC 3800, Australia
- Arthur Rylah Institute for Environmental Research, Heidelberg, VIC 3084, Australia
| | - Lana Austin
- School of Biological Sciences, Monash University, Melbourne, VIC 3800, Australia
| | - Stephanie Falk
- School of Biological Sciences, Monash University, Melbourne, VIC 3800, Australia
- Max Planck Institute of Immunobiology and Epigenetics, 79108, Freiburg, Germany
| | - Damian K Dowling
- School of Biological Sciences, Monash University, Melbourne, VIC 3800, Australia
| | - Paul Sunnucks
- School of Biological Sciences, Monash University, Melbourne, VIC 3800, Australia.
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Shogren EH, Sardell JM, Muirhead CA, Martí E, Cooper EA, Moyle RG, Presgraves DC, Uy JAC. Recent secondary contact, genome-wide admixture, and asymmetric introgression of neo-sex chromosomes between two Pacific island bird species. PLoS Genet 2024; 20:e1011360. [PMID: 39172766 PMCID: PMC11340901 DOI: 10.1371/journal.pgen.1011360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 06/28/2024] [Indexed: 08/24/2024] Open
Abstract
Secondary contact between closely related taxa represents a "moment of truth" for speciation-an opportunity to test the efficacy of reproductive isolation that evolved in allopatry and to identify the genetic, behavioral, and/or ecological barriers that separate species in sympatry. Sex chromosomes are known to rapidly accumulate differences between species, an effect that may be exacerbated for neo-sex chromosomes that are transitioning from autosomal to sex-specific inheritance. Here we report that, in the Solomon Islands, two closely related bird species in the honeyeater family-Myzomela cardinalis and Myzomela tristrami-carry neo-sex chromosomes and have come into recent secondary contact after ~1.1 my of geographic isolation. Hybrids of the two species were first observed in sympatry ~100 years ago. To determine the genetic consequences of hybridization, we use population genomic analyses of individuals sampled in allopatry and in sympatry to characterize gene flow in the contact zone. Using genome-wide estimates of diversity, differentiation, and divergence, we find that the degree and direction of introgression varies dramatically across the genome. For sympatric birds, autosomal introgression is bidirectional, with phenotypic hybrids and phenotypic parentals of both species showing admixed ancestry. In other regions of the genome, however, the story is different. While introgression on the Z/neo-Z-linked sequence is limited, introgression of W/neo-W regions and mitochondrial sequence (mtDNA) is highly asymmetric, moving only from the invading M. cardinalis to the resident M. tristrami. The recent hybridization between these species has thus enabled gene flow in some genomic regions but the interaction of admixture, asymmetric mate choice, and/or natural selection has led to the variation in the amount and direction of gene flow at sex-linked regions of the genome.
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Affiliation(s)
- Elsie H. Shogren
- Department of Biology, University of Rochester, Rochester, New York, United States of America
| | - Jason M. Sardell
- PrecisionLife Ltd, Hanborough Business Park, Long Hanborough, Witney, Oxon, United Kingdom
| | - Christina A. Muirhead
- Department of Biology, University of Rochester, Rochester, New York, United States of America
- The Ronin Institute, Montclair, New Jersey, United States of America
| | - Emiliano Martí
- Department of Biology, University of Rochester, Rochester, New York, United States of America
| | - Elizabeth A. Cooper
- Department of Bioinformatics & Genomics, University of North Carolina, Charlotte, North Carolina, United States of America
| | - Robert G. Moyle
- Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, Kansas, United States of America
| | - Daven C. Presgraves
- Department of Biology, University of Rochester, Rochester, New York, United States of America
| | - J. Albert C. Uy
- Department of Biology, University of Rochester, Rochester, New York, United States of America
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Rieseberg L, Warschefsky E, Burton J, Huang K, Sibbett B. Editorial 2024. Mol Ecol 2024; 33:e17239. [PMID: 38146175 DOI: 10.1111/mec.17239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Affiliation(s)
- Loren Rieseberg
- Department of Botany and Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Emily Warschefsky
- William L. Brown Center, Missouri Botanical Garden, Saint Louis, MO, USA
| | - Jade Burton
- John Wiley & Sons, Atrium Southern Gate, Chichester, West Sussex, UK
| | - Kaichi Huang
- Department of Botany and Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Benjamin Sibbett
- John Wiley & Sons, Atrium Southern Gate, Chichester, West Sussex, UK
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4
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Bock DG, Liu J, Novikova P, Rieseberg LH. Long-read sequencing in ecology and evolution: Understanding how complex genetic and epigenetic variants shape biodiversity. Mol Ecol 2023; 32:1229-1235. [PMID: 36855925 DOI: 10.1111/mec.16884] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/13/2023] [Indexed: 03/02/2023]
Affiliation(s)
- Dan G Bock
- Department of Botany, Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jianquan Liu
- State Key Laboratory of Grassland and Agro-ecosystems, Institute of Innovation Ecology, School of Life Science and the Supercomputing Center, Lanzhou University, Lanzhou, China.,Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Polina Novikova
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Loren H Rieseberg
- Department of Botany, Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
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Sigeman H, Zhang H, Ali Abed S, Hansson B. A novel neo-sex chromosome in Sylvietta brachyura (Macrosphenidae) adds to the extraordinary avian sex chromosome diversity among Sylvioidea songbirds. J Evol Biol 2022; 35:1797-1805. [PMID: 36156325 PMCID: PMC10087220 DOI: 10.1111/jeb.14096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 06/03/2022] [Accepted: 07/21/2022] [Indexed: 11/29/2022]
Abstract
We report the discovery of a novel neo-sex chromosome in an African warbler, Sylvietta brachyura (northern crombec; Macrosphenidae). This species is part of the Sylvioidea superfamily, where four separate autosome-sex chromosome translocation events have previously been discovered via comparative genomics of 11 of the 22 families in this clade. Our discovery here resulted from analyses of genomic data of single species-representatives from three additional Sylvioidea families (Macrosphenidae, Pycnonotidae and Leiothrichidae). In all three species, we confirmed the translocation of a part of chromosome 4A to the sex chromosomes, which originated basally in Sylvioidea. In S. brachyura, we found that a part of chromosome 8 has been translocated to the sex chromosomes, forming a unique neo-sex chromosome in this lineage. Furthermore, the non-recombining part of 4A in S. brachyura is smaller than in other Sylvioidea species, which suggests that recombination continued along this region after the fusion event in the Sylvioidea ancestor. These findings reveal additional sex chromosome diversity among the Sylvioidea, where five separate translocation events are now confirmed.
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Affiliation(s)
- Hanna Sigeman
- Department of Biology, Lund University, Lund, Sweden.,Ecology and Genetics Research Unit, University of Oulu, Oulu, Finland
| | - Hongkai Zhang
- Department of Biology, Lund University, Lund, Sweden
| | | | - Bengt Hansson
- Department of Biology, Lund University, Lund, Sweden
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