• search hit 5 of 1524
Back to Result List

A comparative view on sex differentiation and gametogenesis genes in lungfish and coelacanths

Please always quote using this URN: urn:nbn:de:bvb:20-opus-176774
  • Gonadal sex differentiation and reproduction are the keys to the perpetuation of favorable gene combinations and positively selected traits. In vertebrates, several gonad development features that differentiate tetrapods and fishes are likely to be, at least in part, related to the water-to-land transition. The collection of information from basal sarcopterygians, coelacanths, and lungfishes, is crucial to improve our understanding of the molecular evolution of pathways involved in reproductive functions, since these organisms are generallyGonadal sex differentiation and reproduction are the keys to the perpetuation of favorable gene combinations and positively selected traits. In vertebrates, several gonad development features that differentiate tetrapods and fishes are likely to be, at least in part, related to the water-to-land transition. The collection of information from basal sarcopterygians, coelacanths, and lungfishes, is crucial to improve our understanding of the molecular evolution of pathways involved in reproductive functions, since these organisms are generally regarded as “living fossils” and as the direct ancestors of tetrapods. Here, we report for the first time the characterization of >50 genes related to sex differentiation and gametogenesis in Latimeria menadoensis and Protopterus annectens. Although the expression profiles of most genes is consistent with the intermediate position of basal sarcopterygians between actinopterygian fish and tetrapods, their phylogenetic placement and presence/absence patterns often reveal a closer affinity to the tetrapod orthologs. On the other hand, particular genes, for example, the male gonad factor gsdf (Gonadal Soma-Derived Factor), provide examples of ancestral traits shared with actinopterygians, which disappeared in the tetrapod lineage.show moreshow less

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar Statistics
Metadaten
Author: Maria Assunta Biscotti, Mateus Contar Adolfi, Marco Barucca, Mariko Forconi, Alberto Pallavicini, Marco Gerdol, Adriana Canapa, Manfred Schartl
URN:urn:nbn:de:bvb:20-opus-176774
Document Type:Journal article
Faculties:Medizinische Fakultät / Theodor-Boveri-Institut für Biowissenschaften
Language:English
Parent Title (English):Genome Biology and Evolution
Year of Completion:2018
Volume:10
Issue:6
Pagenumber:1430-1444
Source:Genome Biology and Evolution 2018, 10(6):1430-1444. DOI: 10.1093/gbe/evy101
DOI:https://doi.org/10.1093/gbe/evy101
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 571 Physiologie und verwandte Themen
Tag:Latimeria menadoensis; Protopterus annectens; evolution; gametogenesis; ovary; sex differentiation; testis
Release Date:2019/02/26
Collections:Open-Access-Publikationsfonds / Förderzeitraum 2018
Licence (German):License LogoCC BY-NC: Creative-Commons-Lizenz: Namensnennung, Nicht kommerziell 4.0 International