Complex patterns of genetic and morphological differentiation in the Smallmouth Bass subspecies (Micropterus dolomieu dolomieu and M. d. velox) of the Central Interior Highlands

Gunn, Joe C.; Berkman, Leah K.; Koppelman, Jeffrey B.; Taylor, Andrew; Brewer, Shannon K.; Long, James M.; Eggert, Lori S.

doi:10.1007/s10592-020-01295-1

Cited by 8 publications

(30 citation statements)

References 64 publications

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“…A range-wide allozyme study of the Smallmouth Bass complex identified several fixed allelic differences consistent with Hubbs and Bailey’s 32 delimitation of the Neosho Bass and determined the populations of the Smallmouth Bass complex in the Little and Ouachita Rivers are genetically distinct and are not intergrades of Smallmouth Bass and Neosho Bass 83 . Studies using microsatellite loci convincingly identified the Neosho Bass as a distinct lineage and reveal signatures of genetic admixture as the result of human-mediated introductions of non-native Smallmouth Bass 33 , 34 .…”

Section: Resultsmentioning

confidence: 99%

“…Among the taxa synonymized with the Smallmouth Bass, the Neosho Bass ( M. dolomieu velox ) is the subject of a debate in the systematics of Micropterus . Hubbs and Bailey 32 :29 described the Neosho Bass as a subspecies of the Smallmouth Bass based on external morphological traits and subsequent analysis observed a significant difference between the Neosho Bass and Smallmouth in head length 33 . The Neosho Bass is limited to a small area of the Arkansas River system, ranging from the Fourche La Fave River upstream to the Neosho River.…”

Section: Resultsmentioning

confidence: 99%

“…4 ), supporting the delimitation of each as a distinct species if additional layers of evidence such as phenotype, behavior, or ecology are available 84 . Based on the results of our phylogenomic analyses and documented morphological distinctiveness 32 , 33 , we elevate the Neosho Bass, Micropterus velox , to the species taxonomic rank. Although Stark and Echelle 83 treated the Little River Bass and Ouachita Bass as single distinct genetic lineage, results from our phylogenomic analyses suggest that the two sister lineages are not only distinct from the Smallmouth Bass and Neosho Bass, they each have a gdi value which exceeds that observed for the other two species (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The understanding of Micropterus phylogeny and species diversity have dramatically increased over the past 20 years with the application of molecular data and a reexamination of morphological differences 29 , 33 , 35 , 83 , 85 , 87 , 88 , 91 . The results of our phylogenomic analyses using ddRAD data result in the delimitation of 19 species of Micropterus (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, distinct lineages and populations of the Smallmouth Bass have been recognized since 1940 with the discovery and description of the Neosho Bass ( M. dolomieu velox ) as a subspecies of Smallmouth Bass 32 . Recent population genetic assessments illustrate that stocking of the more widespread Smallmouth Bass ( M. dolomieu dolomieu ) into impoundments has led to genetically admixed populations within the narrow native range of the Neosho Bass 33 , 34 . Despite the fact that the Alabama Bass ( M. henshalli ) was recognized as a distinct species nearly 15 years ago 35 , it is still introduced outside of its native distribution where it hybridizes with other species of Micropterus with the threat of regional extirpation of native species of Micropterus 36 , 37 .…”

Section: Introductionmentioning

confidence: 99%

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Phylogenomics and species delimitation of the economically important Black Basses (Micropterus)

Kim

Taylor

Near

2022

Sci Rep

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Informed management and conservation efforts are vital to sustainable recreational fishing and biodiversity conservation. Because the taxonomic rank of species is important in conservation and management strategies, success of these efforts depends on accurate species delimitation. The Black Basses (Micropterus) are an iconic lineage of freshwater fishes that include some of the world’s most popular species for recreational fishing and world's most invasive species. Despite their popularity, previous studies to delimit species and lineages in Micropterus suffer from insufficient geographic coverage and uninformative molecular markers. Our phylogenomic analyses of ddRAD data result in the delimitation of 19 species of Micropterus, which includes 14 described species, the undescribed but well-known Altamaha, Bartram’s, and Choctaw basses, and two additional undescribed species currently classified as Smallmouth Bass (M. dolomieu). We provide a revised delimitation of species in the Largemouth Bass complex that necessitates a change in scientific nomenclature: Micropterus salmoides is retained for the Florida Bass and Micropterus nigricans is elevated from synonymy for the Largemouth Bass. The new understanding of diversity, distribution, and systematics of Black Basses will serve as important basis for the management and conservation of this charismatic and economically important clade of fishes.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Phylogenomics and species delimitation of the economically important Black Basses (Micropterus)

Kim

Taylor

Near

2022

Sci Rep

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Genomic divergence, local adaptation, and complex demographic history may inform management of a popular sportfish species complex

Gunn

Berkman

Koppelman

et al. 2022

Ecology and Evolution

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The Neosho Bass ( Micropterus velox ), a former subspecies of the keystone top‐predator and globally popular Smallmouth Bass ( M. dolomieu ), is endemic and narrowly restricted to small, clear streams of the Arkansas River Basin in the Central Interior Highlands (CIH) ecoregion, USA. Previous studies have detected some morphological, genetic, and genomic differentiation between the Neosho and Smallmouth Basses; however, the extent of neutral and adaptive divergence and patterns of intraspecific diversity are poorly understood. Furthermore, lineage diversification has likely been impacted by gene flow in some Neosho populations, which may be due to a combination of natural biogeographic processes and anthropogenic introductions. We assessed: (1) lineage divergence, (2) local directional selection (adaptive divergence), and (3) demographic history among Smallmouth Bass populations in the CIH using population genomic analyses of 50,828 single‐nucleotide polymorphisms (SNPs) obtained through ddRAD‐seq. Neosho and Smallmouth Bass formed monophyletic clades with 100% bootstrap support. We identified two major lineages within each species. We discovered six Neosho Bass populations (two nonadmixed and four admixed) and three nonadmixed Smallmouth Bass populations. We detected 29 SNPs putatively under directional selection in the Neosho range, suggesting populations may be locally adapted. Two populations were admixed via recent asymmetric secondary contact, perhaps after anthropogenic introduction. Two other populations were likely admixed via combinations of ancient and recent processes. These species comprise independently evolving lineages, some having experienced historical and natural admixture. These results may be critical for management of Neosho Bass as a distinct species and may aid in the conservation of other species with complex biogeographic histories.

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Genetic differences among the Interior Highlands walleye (Sander vitreus) with mitochondrial and nuclear markers indicate the need for updated stocking practices

et al. 2023

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Complex patterns of genetic and morphological differentiation in the Smallmouth Bass subspecies (Micropterus dolomieu dolomieu and M. d. velox) of the Central Interior Highlands

Cited by 8 publications

References 64 publications

Phylogenomics and species delimitation of the economically important Black Basses (Micropterus)

Phylogenomics and species delimitation of the economically important Black Basses (Micropterus)

Genomic divergence, local adaptation, and complex demographic history may inform management of a popular sportfish species complex

Genetic differences among the Interior Highlands walleye (Sander vitreus) with mitochondrial and nuclear markers indicate the need for updated stocking practices

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