Comparative cytogenetic analysis of marine “Palaemon” species reveals a X₁X₁X₂X₂/X₁X₂Y sex chromosome system in “Palaemon elegans”

Abstract

[Abstract]: The maintenance of species and the promotion of speciation are closely related to chromosomal rearrangements throughout evolution. Decapoda represents the most species-rich order among crustaceans and, despite its ecological and economic importance, little is known about decapod karyology. We aim at cytogenetically characterizing two sympatric prawn species.