Analysis of the development of the lizard, Calotes versicolor. I. A series of normal stages in the embryonic development

Abstract

It has been shown that the external parameters of eggs of the garden lizard, Calotes versicolor, are not suitable for assessing the exact developmental stages of embryos. In order to make use of this lizard's embryos for experimental work, a series of developmental stages has been characterized, using various morphological features.

Differential expression of estrogen receptor alpha in the embryonic adrenal–kidney–gonadal complex of the oviparous lizard, Calotes versicolor (Daud.)

“…The eggs were incubated from oviposition (stage 27) to hatching (stage 42). Developmental progress was monitored regularly and the stages of embryonic development were determined as per the criteria previously described for C. versicolor (Muthukkaruppan et al, 1970).…”

Identification of Wnt4 as the ovary pathway gene and temporal disparity of its expression vis-a-vis testis genes in the garden lizard, Calotes versicolor

“…Under these conditions, the incubation period of the egg was 52 ± 2 days. Embryonic stages were classified as per (Muthukkaruppan et al, 1970). Embryos were sacrificed at different days of development 0, 5, 10, 15, 20, 25, 30, 35 and 45.…”

Evolutionary conservation of the gene C vs ox9 in the lizard, Calotes versicolor , and its expression during gonadal differentiation

“…Under these conditions the incubation period of the egg was 52±1 days. Embryonic stages were classified according to the developmental table reported for this species (Muthukkaruppan et al 1970). …”