How to translate text using browser tools
1 April 2010 Homology and Evolution of the Antenna in Podocopid Ostracods from the Perspective of Aesthetascs
Tomonari Kaji, Akira Tsukagoshi
Author Affiliations +
Abstract

Antennal podomere homology has not been well documented in podocopid ostracods. Difficulties associated with describing this homology are compounded by the occurrence of specialised podomeres in both cytheroids and bairdioids. Our research establishes the existence of two kinds of aesthetascs shared among multiple higher taxa. Overgrowth “t-setae” are present in males in Cytheroidea, Cypridocopina and Darwinuloidea, and “aesthetasc yc” is found in both sexes in Cytheroidea and Bairdioidea. Homology of the antennal podomeres among all podocopid superfamilies was determined by using the chaetotaxy of these aesthetascs, leading to a description of evolutionary modifications of the podocopid antenna, which suggests that changes in function of the articulation were prompted by the temporal demands of copulatory behavior in each lineage.

© 2010 Zoological Society of Japan
Tomonari Kaji and Akira Tsukagoshi "Homology and Evolution of the Antenna in Podocopid Ostracods from the Perspective of Aesthetascs," Zoological Science 27(4), 356-361, (1 April 2010). https://doi.org/10.2108/zsj.27.356
Received: 11 June 2009; Accepted: 12 November 2009; Published: 1 April 2010
KEYWORDS
antenna
chaetotaxy
evolutionary morphology
homology
Ostracoda
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top