Two spinefoot colour morphs: mottled spinefoot <i>Siganus fuscescens</i> and white‐spotted spinefoot <i>Siganus canaliculatus</i> are synonyms

Hsu, Te‐Hua; Adiputra, Yudha Trinoegraha; Burridge, Christopher P.; Gwo, Jin‐Chywan

doi:10.1111/j.1095-8649.2011.03104.x

Cited by 16 publications

(16 citation statements)

References 23 publications

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“…In earlier studies of Elacatinus , Taylor and Hellberg (2005, 2006) suggested that, for this genus of 34 currently recognized species (Froese and Pauly 2013), speciation was consistent with a model of regional but recurrent adaptive radiations driven by a combination of colouration and ecological differentiation. However, we note that Hsu et al (2011) provide evidence that, at least in Siganus Forsskål, 1775, species defined by colour differences do not necessarily equate with genetic lineages.…”

Section: Introductionmentioning

confidence: 66%

A cornucopia of cryptic species - a DNA barcode analysis of the gobiid fish genus Trimma (Percomorpha, Gobiiformes)

Winterbottom¹,

Hanner²,

Burridge³

et al. 2014

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A genetic analysis of partial mitochondrial 5’ cytochrome c oxidase I gene (DNA barcode) sequences of 473 specimens assigned to 52 morphological species (including four known, but not formally named, species) of the gobiid genus Trimma revealed the presence of 94 genetic lineages. Each lineage was separated by > 2% sequence divergence. Thus there were an additional 42 haplogroups recognizable as provisional candidate species given that a value of > 2% difference is typical of different species of fishes. Such a high degree of apparently different cryptic species is, in our experience, virtually unprecedented among vertebrates. These results have precipitated further morphological research in a few cases, which has uncovered subtle differences independently corroborating the genetic results. However, such efforts are limited by the dearth of traditional systematists available to undertake the necessary time-consuming, and highly detailed, morphological research. In some cases, the genetic results we present are consistent with, and confirm, minor taxonomic distinctions based on morphology and/or colour pattern. In other instances, what had been recognized as a single species consists of several genetic lineages - up to eight in, for example, what we have identified based on morphology as Trimma okinawae. The increase from 52 to 94 potential species in our sampling raises the predicted total number of species in this genus from about 110 to nearly 200 (versus the 73 valid described species currently recognized).

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Section: Introductionmentioning

confidence: 66%

A cornucopia of cryptic species - a DNA barcode analysis of the gobiid fish genus Trimma (Percomorpha, Gobiiformes)

Winterbottom¹,

Hanner²,

Burridge³

et al. 2014

View full text Add to dashboard Cite

show abstract

“…canaliculatus and S . fuscescens morphotypes [ 20 ], and by non-concordance between morphotype and genetic clustering based on AFLP loci [ 21 ]. Authors have concluded that S .…”

Section: Introductionmentioning

confidence: 99%

“…fuscescens and S . canaliculatus interbreed, hence represent morphological variants or geographically isolated groups within a single biological species [ 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

“…The distribution of Clade B appears to be restricted to the northern periphery of the S . fuscescens’ distributional range, having been reported from Japan, Taiwan, the northern Philippines, Vietnam and Thailand [ 21 , 23 – 26 ]. Clade C is present in the northwestern Pacific [ 19 – 21 , 23 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

“…fuscescens’ distributional range, having been reported from Japan, Taiwan, the northern Philippines, Vietnam and Thailand [ 21 , 23 – 26 ]. Clade C is present in the northwestern Pacific [ 19 – 21 , 23 , 26 ]. Mitochondrial DNA sequences have been useful in the study of lineage diversification in Siganidae [ 18 , 20 ], and of their phylogeography and population genetic structure [ 19 , 21 , 23 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

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Cryptic genetic diversity in the mottled rabbitfish Siganus fuscescens with mitochondrial introgression at a contact zone in the South China Sea

et al. 2018

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The taxonomy of the mottled rabbitfish Siganus fuscescens species complex has long been challenging. In this study, we analyzed microsatellite genotypes, mitochondrial lineages, and morphometric data from 373 S. fuscescens individuals sampled from the northern Philippines and Hong Kong (South China Sea, Philippine Sea and Sulu Sea basins), to examine putative species boundaries in samples comprising three co-occurring mitochondrial lineages previously reported to characterize S. fuscescens (Clade A and Clade B) or S. canaliculatus (Clade C). We report the existence of two cryptic species within S. fuscescens in the northeast region of the South China Sea and northern Philippine Sea, supported by genetic and morphological differences. Individual-based assignment methods recovered concordant groupings of individuals into two nuclear genotype clusters (Cluster 1, Cluster 2) with (1) limited gene flow, if any, between them (FST = 0.241; P < 0.001); (2) low frequency of later-generation hybrids; (3) significant association with mitochondrial Clade A and Clade B, respectively; and (4) subtle yet significant body shape differences as inferred from geometric morphometric analysis. The divergence between mitochondrial Clade C and the two other clades was not matched by genetic differences at microsatellite marker loci. The occurrence of discordant mitonuclear combinations (20.5% of the total number of individuals) is thought to result from mitochondrial introgression, consistent with a scenario of demographic, and presumably spatial, post-Pleistocene expansion of populations from northern regions into a secondary contact zone in the South China Sea. Mitonuclear discordance due to introgression obscures phylogenetic relationships for recently-diverged lineages, and cautions against the use of mitochondrial markers alone for species identification within the mottled rabbitfish species complex in the South China Sea region.

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De Novo Assembly and Annotation of the Siganus fuscescens (Houttuyn, 1782) Genome: Marking a Pioneering Advance for the Siganidae Family

Mwamburi,

Kawato,

Furukawa

et al. 2024

Mar Biotechnol

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Two spinefoot colour morphs: mottled spinefoot Siganus fuscescens and white‐spotted spinefoot Siganus canaliculatus are synonyms

Cited by 16 publications

References 23 publications

A cornucopia of cryptic species - a DNA barcode analysis of the gobiid fish genus Trimma (Percomorpha, Gobiiformes)

A cornucopia of cryptic species - a DNA barcode analysis of the gobiid fish genus Trimma (Percomorpha, Gobiiformes)

Cryptic genetic diversity in the mottled rabbitfish Siganus fuscescens with mitochondrial introgression at a contact zone in the South China Sea

De Novo Assembly and Annotation of the Siganus fuscescens (Houttuyn, 1782) Genome: Marking a Pioneering Advance for the Siganidae Family

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