Fig. 3From: Comparative cytogenetic analysis of marine Palaemon species reveals a X1X1X2X2/X1X2Y sex chromosome system in Palaemon elegans C-banded plates of (a) meiotic diakinesis of P. elegans and (b) mitotic metaphase of P. serratus males. Single arrows show C-band blocks, double arrow shows the sex trivalent (c, d) The same meiotic diakinesis of P. elegans and mitotic metaphase of P. serratus males, stained with DAPI. Chromosomal localization of the 18S–5.8S-28S rDNA genes of (e) P. elegans male and (f) female. Chromosomal localization of the (TTAGG)n telomeric sequences in (g) P. elegans male and (h) P. serratus male. Asterisks in a and c indicate the sex trivalent. The bar equals 10 μmBack to article page