First Evidence of Secondary Sexual Dimorphism in the Freshwater Fish Family Botiidae: A Newly Recognised Synapomorphy of Loaches (Cypriniformes: Cobitoidea)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F25%3A00644532" target="_blank" >RIV/67985904:_____/25:00644532 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2410-3888/10/12/648" target="_blank" >https://www.mdpi.com/2410-3888/10/12/648</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/fishes10120648" target="_blank" >10.3390/fishes10120648</a>

Jazyk výsledku

angličtina

Název v původním jazyce

First Evidence of Secondary Sexual Dimorphism in the Freshwater Fish Family Botiidae: A Newly Recognised Synapomorphy of Loaches (Cypriniformes: Cobitoidea)

Popis výsledku v původním jazyce

Within the freshwater fish order Cypriniformes, loaches form a monophyletic lineage comprising nine families with more than 1400 species. Secondary sexual dimorphism is widespread among loach families, most notably in the form of enlarged pectoral fins and tubercles or other hard structures on the pectoral fin in adult males. To date, the family Botiidae, phylogenetically sister to all other loach families, was reported to lack such sexually dimorphic structures, leading to the hypothesis that the common ancestor of loaches did not exhibit sexual dimorphism. Here, we report the presence of sexual dimorphism in eight species of Botiidae: Leptobotia bellacauda, L. guilinensis, L. microphthalma, L. taeniops, L. tchangi, Parabotia fasciatus, Sinibotia pulchra, and S. robusta. In all species, adult males possess longer pectoral fins than females. Additionally, males of L. guilinensis and L. tchangi exhibit larger pelvic fins, while males of L. microphthalma have larger anal fins. In L. bellacauda, L. microphthalma, and L. tchangi, portions of the dorsal surface of the pectoral fin bear rows of tubercles. The three genera displaying sexual dimorphism belong to two different subfamilies, demonstrating that sexual dimorphism is widespread across Botiidae and not restricted to a single genus or subfamily. Our results show that sexual dimorphism is present in the most basal family of loaches, suggesting that it represents a synapomorphy of loach fishes.

Název v anglickém jazyce

First Evidence of Secondary Sexual Dimorphism in the Freshwater Fish Family Botiidae: A Newly Recognised Synapomorphy of Loaches (Cypriniformes: Cobitoidea)

Popis výsledku anglicky

Within the freshwater fish order Cypriniformes, loaches form a monophyletic lineage comprising nine families with more than 1400 species. Secondary sexual dimorphism is widespread among loach families, most notably in the form of enlarged pectoral fins and tubercles or other hard structures on the pectoral fin in adult males. To date, the family Botiidae, phylogenetically sister to all other loach families, was reported to lack such sexually dimorphic structures, leading to the hypothesis that the common ancestor of loaches did not exhibit sexual dimorphism. Here, we report the presence of sexual dimorphism in eight species of Botiidae: Leptobotia bellacauda, L. guilinensis, L. microphthalma, L. taeniops, L. tchangi, Parabotia fasciatus, Sinibotia pulchra, and S. robusta. In all species, adult males possess longer pectoral fins than females. Additionally, males of L. guilinensis and L. tchangi exhibit larger pelvic fins, while males of L. microphthalma have larger anal fins. In L. bellacauda, L. microphthalma, and L. tchangi, portions of the dorsal surface of the pectoral fin bear rows of tubercles. The three genera displaying sexual dimorphism belong to two different subfamilies, demonstrating that sexual dimorphism is widespread across Botiidae and not restricted to a single genus or subfamily. Our results show that sexual dimorphism is present in the most basal family of loaches, suggesting that it represents a synapomorphy of loach fishes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Fishes

ISSN

2410-3888

e-ISSN

2410-3888

Svazek periodika

10

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

16

Strana od-do

648

Kód UT WoS článku

001647276000001

EID výsledku v databázi Scopus

2-s2.0-105025750385