Arid
DOI10.1644/12-MAMM-A-252
Cryptic divergence and revised species taxonomy within the Great Basin pocket mouse, Perognathus parvus (Peale, 1848), species group
Riddle, Brett R.1; Jezkova, Tereza1; Eckstut, Mallory E.1; Olah-Hemmings, Viktoria1; Carraway, Leslie N.2
通讯作者Riddle, Brett R.
来源期刊JOURNAL OF MAMMALOGY
ISSN0022-2372
EISSN1545-1542
出版年2014
卷号95期号:1页码:9-25
英文摘要

The Great Basin pocket mouse, Perognathus parvus, inhabits temperate shrub-steppe and arid grassland biomes throughout the Columbia Plateau, Great Basin, and adjacent regions of western North America. We used both mitochondrial DNA (mtDNA) and nuclear DNA (nDNA) sequences to address phylogenetic and biogeographic structure within the P. parvus species group. Phylogenetic and biogeographic analyses divide haplotypes from the mtDNA cytochrome oxidase subunit 3 (COM) gene into largely allopatric northern versus southern lineages (clades), with divergences of up to 18.8%. The southern mtDNA clade also includes at least 1 of the 2 recently extant populations of the white-eared pocket mouse, P. alticolus an endangered species with a restricted range in southern California. The northern mtDNA clade is further subdivided into several additional lineages with divergences as high as 8.8%, whereas the southern clade has no divergence greater than 1.2%. The deeper mtDNA gene tree structure was recovered by use of nDNA exon sequences from the interphotoreceptor retinoidbinding protein (IRBP) and recombination activating gene 2 (RAG2) gene regions, supporting a "gene tree species tree" congruence. We estimated through molecular clock analyses that the northern and southern clades likely diverged within a late Miocene time frame. The limited available karyological evidence is consistent with a genome-wide divergence between northern and southern clades thus, is consistent with recognition of each as a separate species. Conversely, our morphometric analysis revealed a high level of morphological conservatism without detectable diagnostic differences, rendering them as "cryptic" species. We revised species-level taxonomy, designating 2 neotypes given apparent loss of original type specimens. We postulate that bathers associated with Columbia Plateau, Snake River Plain, and Great Basin physiographic evolution, during a Neogene time frame, resulted in persistent geographic isolation driving divergence between the northern and southern clades.


英文关键词biogeography Columbia Plateau Great Basin Heteromyidae mitochondrial DNA neotype nuclear DNA Perognathinae Perognathus parvus pocket mice
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000332350200002
WOS关键词WESTERN NORTH-AMERICA ; KANGAROO MOUSE ; MAMMALS ; MICE ; PHYLOGEOGRAPHY ; PHYLOGENETICS ; CHAETODIPUS ; RODENTIA ; CLIMATE ; DIVERSIFICATION
WOS类目Zoology
WOS研究方向Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/183538
作者单位1.Univ Nevada, Sch Life Sci, Las Vegas, NV 89154 USA;
2.Oregon State Univ, Dept Fisheries & Wildlife, Corvallis, OR 97331 USA
推荐引用方式
GB/T 7714
Riddle, Brett R.,Jezkova, Tereza,Eckstut, Mallory E.,et al. Cryptic divergence and revised species taxonomy within the Great Basin pocket mouse, Perognathus parvus (Peale, 1848), species group[J],2014,95(1):9-25.
APA Riddle, Brett R.,Jezkova, Tereza,Eckstut, Mallory E.,Olah-Hemmings, Viktoria,&Carraway, Leslie N..(2014).Cryptic divergence and revised species taxonomy within the Great Basin pocket mouse, Perognathus parvus (Peale, 1848), species group.JOURNAL OF MAMMALOGY,95(1),9-25.
MLA Riddle, Brett R.,et al."Cryptic divergence and revised species taxonomy within the Great Basin pocket mouse, Perognathus parvus (Peale, 1848), species group".JOURNAL OF MAMMALOGY 95.1(2014):9-25.
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