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Pregled bibliografske jedinice broj: 998975

The role of gene flow in rapid and repeated evolution of cave-related traits in Mexican tetra, Astyanax mexicanus


Herman, Adam; Brandvain, Yaniv; Weagley, James; Jeffery, William R.; Keene, Alex C.; Kono, Thomas J. Y.; Bilandžija, Helena; Borowsky, Richard; Espinasa, Luis; O'Quin, Kelly et al.
The role of gene flow in rapid and repeated evolution of cave-related traits in Mexican tetra, Astyanax mexicanus // Molecular Ecology, 27 (2018), 22; 4397-4416 doi:10.1111/mec.14877 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 998975 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
The role of gene flow in rapid and repeated evolution of cave-related traits in Mexican tetra, Astyanax mexicanus

Autori
Herman, Adam ; Brandvain, Yaniv ; Weagley, James ; Jeffery, William R. ; Keene, Alex C. ; Kono, Thomas J. Y. ; Bilandžija, Helena ; Borowsky, Richard ; Espinasa, Luis ; O'Quin, Kelly ; Ornelas-García, Claudia P. ; Yoshizawa, Masato ; Carlson, Brian ; Maldonado, Ernesto ; Gross, Joshua B. ; Cartwright, Reed A. ; Rohner, Nicolas ; Warren, Wesley C. ; McGaugh, Suzanne E.

Izvornik
Molecular Ecology (0962-1083) 27 (2018), 22; 4397-4416

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
gene flow ; cave‐related traits ; Mexican tetra ; cave fish

Sažetak
Understanding the molecular basis of repeatedly evolved phenotypes can yield key insights into the evolutionary process. Quantifying gene flow between populations is especially important in interpreting mechanisms of repeated phenotypic evolution, and genomic analyses have revealed that admixture occurs more frequently between diverging lineages than previously thought. In this study, we resequenced 47 whole genomes of the Mexican tetra from three cave populations, two surface populations and outgroup samples. We confirmed that cave populations are polyphyletic and two Astyanax mexicanus lineages are present in our data set. The two lineages likely diverged much more recently than previous mitochondrial estimates of 5-7 mya. Divergence of cave populations from their phylogenetically closest surface population likely occurred between ~161 and 191 k generations ago. The favoured demographic model for most population pairs accounts for divergence with secondary contact and heterogeneous gene flow across the genome, and we rigorously identified gene flow among all lineages sampled. Therefore, the evolution of cave-related traits occurred more rapidly than previously thought, and trogolomorphic traits are maintained despite gene flow with surface populations. The recency of these estimated divergence events suggests that selection may drive the evolution of cave-derived traits, as opposed to disuse and drift. Finally, we show that a key trogolomorphic phenotype QTL is enriched for genomic regions with low divergence between caves, suggesting that regions important for cave phenotypes may be transferred between caves via gene flow. Our study shows that gene flow must be considered in studies of independent, repeated trait evolution.

Izvorni jezik
Engleski

Znanstvena područja
Biologija



POVEZANOST RADA


Ustanove
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Helena Bilandžija (autor)

Citiraj ovu publikaciju

Herman, Adam; Brandvain, Yaniv; Weagley, James; Jeffery, William R.; Keene, Alex C.; Kono, Thomas J. Y.; Bilandžija, Helena; Borowsky, Richard; Espinasa, Luis; O'Quin, Kelly et al.
The role of gene flow in rapid and repeated evolution of cave-related traits in Mexican tetra, Astyanax mexicanus // Molecular Ecology, 27 (2018), 22; 4397-4416 doi:10.1111/mec.14877 (međunarodna recenzija, članak, znanstveni)
Herman, A., Brandvain, Y., Weagley, J., Jeffery, W., Keene, A., Kono, T., Bilandžija, H., Borowsky, R., Espinasa, L. & O'Quin, K. (2018) The role of gene flow in rapid and repeated evolution of cave-related traits in Mexican tetra, Astyanax mexicanus. Molecular Ecology, 27 (22), 4397-4416 doi:10.1111/mec.14877.
@article{article, year = {2018}, pages = {4397-4416}, DOI = {10.1111/mec.14877}, keywords = {gene flow, cave‐related traits, Mexican tetra, cave fish}, journal = {Molecular Ecology}, doi = {10.1111/mec.14877}, volume = {27}, number = {22}, issn = {0962-1083}, title = {The role of gene flow in rapid and repeated evolution of cave-related traits in Mexican tetra, Astyanax mexicanus}, keyword = {gene flow, cave‐related traits, Mexican tetra, cave fish} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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