TY - JOUR
T1 - Genome-wide SNPs clarify lineage diversity confused by coloration in coralsnakes of the Micrurus diastema species complex (Serpentes
T2 - Elapidae)
AU - Reyes-Velasco, Jacobo
AU - Adams, Richard H.
AU - Boissinot, Stephane
AU - Parkinson, Christopher L.
AU - Campbell, Jonathan A.
AU - Castoe, Todd A.
AU - Smith, Eric N.
N1 - Funding Information:
We thank members of the Campbell, Castoe and Smith labs at UTA for their helpful suggestions. We thank multiple Institutions and individuals for providing tissues for this study or for their help in the field, including Rafael Aguilar Cortes, Alejandro Carbajal Saucedo, Ivan Ahumada-Carrillo, Oscar Avila, Luis Canseco, Eric Centenero Alcalá, Christian Cox, Tom Devitt, the late James R. Dixon, Oscar Flores-Villela, Carl Franklin, Uri García, Chistoph Grünwald, Cristián Guirola, Alexander Hermosillo, Carlos Hernandez, Raul Hernandez Arciga, Salomon Hernandez G, Jason Jones, Kenneth Krysko, David Lazcano Villareal, Jesus Loc-Barragan, Victor Luja, Cesar Márquez Camargo, Elizabeth A. Martínez-Salazar, Oscar Medina, Jessee M. Meik, Andrés Alberto Mendoza-Hernández, the late Fernando Mendoza-Quijano, F. Ricardo Mendoza Paz, Roberto Mora, Robert Murphy, Adrian Nieto-Montes de Oca, Ivel Orozco, Carlos Pavón, Gil Paz Gutiérrez, Ricardo Pérez, Edmundo Perez-Ramos, Paulino Ponce-Campos, Quetzal Pureco Rivera, Antonio Ramírez-Velázquez, Jorge Quezada Hipolito, Andrea Roth Monzón, Aide Rodriguez Tiburcio, Mahmood Sasa, Coleman Sheehy, Carlos Soto, Ireri Suazo Ortuño, Jonatan Torres Pérez, Manuel Varela, Jens Vindum, Coleman Sheehy, Ginny Weatherman and Gabriela Zamora-Silva. Isaac Overcast provided valuable assistance with ipyrad, and Joseph Manthey and Yann Bourgeois provided assistance with data analyses. Collecting permits were issued by the Dirección de la Fauna Silvestre to JAC and the Secretaria de Medio Ambiente y Recursos Naturales (SEMARNAT) to J. L. Camarillo-Rangel, V. León-Règagnon, and Oscar Flores-Villela. Funding for this project was provided by NSF grants to CLP and ENS ( DEB-0416000 & 0416160 ), and JAC ( DEB-0613802 & 0102383 ), a grant from Instituto Bioclon to ENS, faculty startup funds from the University of Texas at Arlington to TAC, a Theodore Roosevelt Memorial Fund Grant from the American Museum of Natural History to JRV, and by faculty startup funds from NYUAD to SB.
PY - 2020/6
Y1 - 2020/6
N2 - New world coralsnakes of the genus Micrurus are a diverse radiation of highly venomous and brightly colored snakes that range from North Carolina to Argentina. Species in this group have played central roles in developing and testing hypotheses about the evolution of mimicry and aposematism. Despite their diversity and prominence as model systems, surprisingly little is known about species boundaries and phylogenetic relationships within Micrurus, which has substantially hindered meaningful analyses of their evolutionary history. Here we use mitochondrial genes together with thousands of nuclear genomic loci obtained via ddRADseq to study the phylogenetic relationships and population genomics of a subclade of the genus Micrurus: The M. diastema species complex. Our results indicate that prior species and species-group inferences based on morphology and color pattern have grossly misguided taxonomy, and that the M. diastema complex is not monophyletic. Based on our analyses of molecular data, we infer the phylogenetic relationships among species and populations, and provide a revised taxonomy for the group. Two non-sister species-complexes with similar color patterns are recognized, the M. distans and the M. diastema complexes, the first being basal to the monadal Micrurus and the second encompassing most North American monadal taxa. We examined all 13 species, and their respective subspecies, for a total of 24 recognized taxa in the M. diastema species complex. Our analyses suggest a reduction to 10 species, with no subspecific designations warranted, to be a more likely estimate of species diversity, namely, M. apiatus, M. browni, M. diastema, M. distans, M. ephippifer, M. fulvius, M. michoacanensis, M. oliveri, M. tener, and one undescribed species.
AB - New world coralsnakes of the genus Micrurus are a diverse radiation of highly venomous and brightly colored snakes that range from North Carolina to Argentina. Species in this group have played central roles in developing and testing hypotheses about the evolution of mimicry and aposematism. Despite their diversity and prominence as model systems, surprisingly little is known about species boundaries and phylogenetic relationships within Micrurus, which has substantially hindered meaningful analyses of their evolutionary history. Here we use mitochondrial genes together with thousands of nuclear genomic loci obtained via ddRADseq to study the phylogenetic relationships and population genomics of a subclade of the genus Micrurus: The M. diastema species complex. Our results indicate that prior species and species-group inferences based on morphology and color pattern have grossly misguided taxonomy, and that the M. diastema complex is not monophyletic. Based on our analyses of molecular data, we infer the phylogenetic relationships among species and populations, and provide a revised taxonomy for the group. Two non-sister species-complexes with similar color patterns are recognized, the M. distans and the M. diastema complexes, the first being basal to the monadal Micrurus and the second encompassing most North American monadal taxa. We examined all 13 species, and their respective subspecies, for a total of 24 recognized taxa in the M. diastema species complex. Our analyses suggest a reduction to 10 species, with no subspecific designations warranted, to be a more likely estimate of species diversity, namely, M. apiatus, M. browni, M. diastema, M. distans, M. ephippifer, M. fulvius, M. michoacanensis, M. oliveri, M. tener, and one undescribed species.
KW - Biogeography
KW - Central America
KW - Snake evolution
KW - Systematics
UR - http://www.scopus.com/inward/record.url?scp=85081018043&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85081018043&partnerID=8YFLogxK
U2 - 10.1016/j.ympev.2020.106770
DO - 10.1016/j.ympev.2020.106770
M3 - Article
C2 - 32084510
AN - SCOPUS:85081018043
VL - 147
JO - Molecular Phylogenetics and Evolution
JF - Molecular Phylogenetics and Evolution
SN - 1055-7903
M1 - 106770
ER -