Journal article
The biogeographic history of eelpouts and related fishes: Linking phylogeny, environmental change, and patterns of dispersal in a globally distributed fish group
Molecular phylogenetics and evolution, Vol.162, pp.107211-107211
09/01/2021
PMID: 34029716
Abstract
Modern genetic data sets present unprecedented opportunities to understand the evolutionary origins of diverse taxonomic groups. When the timing of key events is known, it is possible to investigate biogeographic history in the context of major phenomena (e.g., cooling of a major ocean). In this study, we investigated the biogeographic history of the suborder Zoarcoidei, a globally distributed fish group that includes species inhabiting both poles that produce antifreeze proteins to survive chronic subfreezing temperatures. We first generated a multi-locus, time-calibrated phylogeny for the group. We then used biogeographic modeling to reconstruct ancestral ranges across the tree and to quantify the type and frequency of biogeographic events (e.g., founder, dispersal). With these results, we considered how the cooling of the Southern and Arctic Oceans, which reached their present-day subfreezing temperatures 10-15 million years ago (Mya) and 2-3 Mya, respectively, may have shaped the group's evolutionary history, with an emphasis on the most speciose and widely distributed family, eelpouts (family Zoarcidae). Our phylogenetic results clarified the Zoarcoidei taxonomy and showed that the group began to diversify in the Oligocene similar to 31-32 Mya, with the center of origin for all families in north temperate waters. Within-area speciation was the most common biogeographic event in the group's history (80% of all events) followed by dispersal (20%). Finally, we only found evidence, albeit limited, for ocean cooling underpinning diversification of eelpouts living in the high Antarctic over the last 10 million years.
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Details
- Title
- The biogeographic history of eelpouts and related fishes: Linking phylogeny, environmental change, and patterns of dispersal in a globally distributed fish group
- Creators
- Scott Hotaling - Washington State University, Biological Sciences, School ofMarek L. Borowiec - PlantLuana S. F. Lins - Washington State Univ, Sch Biol Sci, Pullman, WA 99164 USAThomas Desvignes - Univ Oregon, Inst Neurosci, Eugene, OR 97403 USAJoanna L. Kelley - Washington State University, Biological Sciences, School of
- Publication Details
- Molecular phylogenetics and evolution, Vol.162, pp.107211-107211
- Academic Unit
- Kelley Lab
- Publisher
- Elsevier
- Number of pages
- 10
- Grant note
- OPP-1543383; OPP-1947040; OPP-1906015 / NSF; National Science Foundation (NSF) Antarctic Bursary, a Washington State University New Faculty Seed Grant
- Identifiers
- 99900882930601842
- Language
- English
- Resource Type
- Journal article