Hermaphroditism in fishes: an annotated list of species, phylogeny, and mating system
Autor: | Yoichi Sakai, Tetsuo Kuwamura, Kota Sawada, Tomoki Sunobe, Tatsuru Kadota |
---|---|
Rok vydání: | 2020 |
Předmět: |
0106 biological sciences
0303 health sciences Sequential hermaphroditism biology Phylogenetic tree ved/biology ved/biology.organism_classification_rank.species Vertebrate Percomorpha biology.organism_classification Mating system 010603 evolutionary biology 01 natural sciences Intraspecific competition 03 medical and health sciences Sex change Evolutionary biology Phylogenetics biology.animal Ecology Evolution Behavior and Systematics 030304 developmental biology |
Zdroj: | Ichthyological Research. 67:341-360 |
ISSN: | 1616-3915 1341-8998 |
Popis: | Fewer than 1% of vertebrate species are hermaphroditic, and essentially all of these are fishes. Four types of hermaphroditism are known in fishes: simultaneous (or synchronous) hermaphroditism (SH), protandry (male-to-female sex change; PA), protogyny (female-to-male sex change; PG), and bidirectional sex change (BS or reversed sex change in protogynous species). Here we present an annotated list of hermaphroditic fish species from a comprehensive review and careful re-examination of all primary literature. We confirmed functional hermaphroditism in more than 450 species in 41 families of 17 teleost orders. PG is the most abundant type (305 species of 20 families), and the others are much less abundant, BS in 66 species of seven families, SH in 55 species of 13 families, and PA in 54 species of 14 families. The recently proposed phylogenetic tree indicated that SH and PA have evolved several times in not-closely related lineages of Teleostei but that PG (and BS) has evolved only in four lineages of Percomorpha. Examination of the relation between hermaphroditism type and mating system in each species mostly supported the size-advantage model that predicts the evolution of sequential hermaphroditism. Finally, intraspecific variations in sexual pattern are discussed in relation to population density, which may cause variation in mating system. |
Databáze: | OpenAIRE |
Externí odkaz: | |
Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |