Mating Dynamics in a Nematode with Three Sexes and Its Evolutionary Implications

Overview

Journal Sci Rep

Specialty Science

Date 2015 Dec 4

PMID 26631423

Citations 20

Authors

Jyotiska Chaudhuri

Neelanjan Bose

Sophie Tandonnet

Sally Adams

Giusy Zuco

Vikas Kache

Manish Parihar

Stephan H Von Reuss

Frank C Schroeder

Andre Pires-daSilva

Affiliations

Soon will be listed here.

Abstract

Nematodes have diverse reproductive strategies, which make them ideal subjects for comparative studies to address how mating systems evolve. Here we present the sex ratios and mating dynamics of the free-living nematode Rhabditis sp. SB347, in which males, females and hermaphrodites co-exist. The three sexes are produced by both selfing and outcrossing, and females tend to appear early in a mother's progeny. Males prefer mating with females over hermaphrodites, which our results suggest is related to the female-specific production of the sex pheromones ascr#1 and ascr#9. We discuss the parallels between this system and that of parasitic nematodes that exhibit alternation between uniparental and biparental reproduction.

Citing Articles

Balancing selfing and outcrossing: the genetics and cell biology of nematodes with three sexual morphs.

Adams S, Tandonnet S, Pires-daSilva A Genetics. 2024; 229(2).

PMID: 39548861 PMC: 11796466. DOI: 10.1093/genetics/iyae173.

Non-Mendelian transmission of X chromosomes: mechanisms and impact on sex ratios and population dynamics in different breeding systems.

Adams S, Pires-daSilva A Biochem Soc Trans. 2024; 52(4):1777-1784.

PMID: 39149984 PMC: 11668290. DOI: 10.1042/BST20231411.

The contribution of an X chromosome QTL to non-Mendelian inheritance and unequal chromosomal segregation in Auanema freiburgense.

Al-Yazeedi T, Adams S, Tandonnet S, Turner A, Kim J, Lee J Genetics. 2024; 227(1).

PMID: 38431281 PMC: 11075566. DOI: 10.1093/genetics/iyae032.

A case of hermaphroditism in the gonochoristic sea urchin, Strongylocentrotus purpuratus, reveals key mechanisms of sex determination†.

Pieplow C, Furze A, Wessel G Biol Reprod. 2023; 108(6):960-973.

PMID: 36943312 PMC: 10266946. DOI: 10.1093/biolre/ioad036.

Nematode Pheromones: Structures and Functions.

Yang B, Wang J, Zheng X, Wang X Molecules. 2023; 28(5).

PMID: 36903652 PMC: 10005090. DOI: 10.3390/molecules28052409.

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