Genomic architecture and introgression shape a butterfly radiation

Type Article
Date 2019-11
Language English
Author(s) Edelman Nathaniel B.1, Frandsen Paul B.2, 3, Miyagi Michael1, Clavijo Bernardo4, Davey John5, Dikow Rebecca B.3, Garcia-Accinelli Gonzalo4, Van Belleghem Steven M.6, Patterson NickORCID7, 8, Neafsey Daniel E.8, 9, Challis RichardORCID10, Kumar SujaiORCID11, Moreira Gilson R. P.12, Salazar CamiloORCID13, Chouteau Mathieu14, Counterman Brian A.15, Papa Riccardo16, Blaxter Mark10, Reed Robert D.17, Dasmahapatra Kanchon K., Kronforst Marcus18, Joron Mathieu19, Jiggins Chris D.20, McMillan W. Owen21, Di Palma Federica4, Blumberg Andrew J.22, Wakeley John, Jaffe David23, Mallet James1
Affiliation(s) 1 : Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA.
2 : Brigham Young Univ, Dept Plant & Wildlife Sci, Provo, UT 84602 USA.
3 : Smithsonian Inst, Data Sci Lab, Off Chief Informat Officer, Washington, DC 20560 USA.
4 : Earlham Inst, Res Pk, Norwich NR4 7UZ, Norfolk, England.
5 : Univ York, Dept Biol, Biosci Technol Facil, York YO10 5DD, N Yorkshire, England.
6 : Univ Puerto Rico, Dept Biol, Rio Piedras Campus, Rio Piedras, PR 00931 USA.
7 : Harvard Univ, Dept Human Evolutionary Biol, Cambridge, MA 02138 USA.
8 : Broad Inst MIT & Harvard, Cambridge, MA 02142 USA.
9 : Harvard TH Chan Sch Publ Hlth, Boston, MA 02115 USA.
10 : Wellcome Sanger Inst, Wellcome Genome Campus, Cambridge CB10 1SA, England.
11 : Univ Edinburgh, Inst Evolutionary Biol, Edinburgh EH9 3JT, Midlothian, Scotland.
12 : Univ Fed Rio Grande, Dept Zool, BR-91501970 Porto Alegre, RS, Brazil.
13 : Univ Rosario, Fac Nat Sci & Math, Biol Program, Carrera 24, Bogota 111221, Colombia.
14 : Laboratoire Ecologie, Evolution, Interactions des Systèmes Amazoniens (LEEISA), USR 3456, Université De Guyane, CNRS Guyane, 275 Route de Montabo, 97334 Cayenne, French Guiana
15 : Mississippi State Univ, Dept Biol Sci, Starkville, MS 39762 USA.
16 : Univ Puerto Rico, Mol Sci & Res Ctr, San Juan, PR 00931 USA.
17 : Cornell Univ, Dept Ecol & Evolutionary Biol, Ithaca, NY 14853 USA.
18 : Univ Chicago, Dept Ecol & Evolut, Chicago, IL 60637 USA.
19 : Univ Montpellier, Univ Paul Valery Montpellier 3, CEFE,CNRS, EPHE,IRD, F-34090 Montpellier, France.
20 : Univ Cambridge, Dept Zool, Cambridge CB2 3EJ, England.
21 : Smithsonian Trop Res Inst, Apartado 0843-03092, Panama City, Panama.
22 : Univ Texas, Dept Math, Austin, TX 78712 USA.
23 : 10x Genom, Pleasanton, CA 94566 USA.
Source Science (0036-8075) (Amer Assoc Advancement Science), 2019-11 , Vol. 366 , N. 6465 , P. 594-599
DOI 10.1126/science.aaw2090
WOS© Times Cited 246
Abstract

We used 20 de novo genome assemblies to probe the speciation history and architecture of gene flow in rapidly radiating Heliconius butterflies. Our tests to distinguish incomplete lineage sorting from introgression indicate that gene flow has obscured several ancient phylogenetic relationships in this group over large swathes of the genome. Introgressed loci are underrepresented in low-recombination and gene-rich regions, consistent with the purging of foreign alleles more tightly linked to incompatibility loci. Here, we identify a hitherto unknown inversion that traps a color pattern switch locus. We infer that this inversion was transferred between lineages by introgression and is convergent with a similar rearrangement in another part of the genus. These multiple de novo genome sequences enable improved understanding of the importance of introgression and selective processes in adaptive radiation.

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Edelman Nathaniel B., Frandsen Paul B., Miyagi Michael, Clavijo Bernardo, Davey John, Dikow Rebecca B., Garcia-Accinelli Gonzalo, Van Belleghem Steven M., Patterson Nick, Neafsey Daniel E., Challis Richard, Kumar Sujai, Moreira Gilson R. P., Salazar Camilo, Chouteau Mathieu, Counterman Brian A., Papa Riccardo, Blaxter Mark, Reed Robert D., Dasmahapatra Kanchon K., Kronforst Marcus, Joron Mathieu, Jiggins Chris D., McMillan W. Owen, Di Palma Federica, Blumberg Andrew J., Wakeley John, Jaffe David, Mallet James (2019). Genomic architecture and introgression shape a butterfly radiation. Science, 366(6465), 594-599. Publisher's official version : https://doi.org/10.1126/science.aaw2090 , Open Access version : https://archimer.ifremer.fr/doc/00659/77116/