03-P094 Does the lizard, Calotes versicolor, exhibit a new pattern (FMFM) of TSD?
نویسندگان
چکیده
منابع مشابه
03-P094 Does the lizard, Calotes versicolor, exhibit a new pattern (FMFM) of TSD?
In vertebrates, retinal progenitor cells (RPCs) are specified at the end of the gastrulation within the anterior neural plate (ANP) as a single domain called the eye field. From that single domain, positioned medially within the ANP, the RPCs give rise to two optic vesicles, positioned more laterally. How this dramatic morphogenetic remodelling occurs is not well understood. We will show that s...
متن کاملnew records of indian garden lizard, calotes versicolor (daudin, 1802) from iran (sauria: agamidae)
the indian garden lizard has been recorded as herpetofauna of iran but the only existing records belong to far years before in which balnford (1870) and zarudny (1903) recorded 2-3 specimens in sistan and baluchestan province of iran. afterward, there were no records on the species in the country. based on the existing records the mentioned localities were investigated for years and using the i...
متن کاملPattern of plasma sex steroid hormone levels during reproductive cycles of male and female tropical lizard, Calotes versicolor.
Annual changes in gonadal activity and plasma sex steroid hormone levels in male and female Calotes versicolor [plasma testosterone (T) levels in males and 17 beta-estradiol (E(2)) and progesterone (P) levels in females] are described. In females both plasma E(2) (32.80 +/- 12.91 pg/ml) and P (1.72 +/- 0.79 ng/ml) levels are at their low levels during the postbreeding season when the gonads are...
متن کاملTemporal difference between testis and ovary determinations with possible involvement of testosterone and aromatase in gonadal differentiation in TSD lacking lizard, Calotes versicolor.
In the garden lizard, Calotes versicolor, which lacks identifiable sex chromosomes, incubation temperature also does not have a deterministic effect on the gender. However, the embryos reared at high temperature (33-35 degrees C) have a shorter duration of incubation as well as gonadal differentiation. In contrast, exogenous application of the male hormone testosterone to embryos at ambient tem...
متن کاملThe mitochondrial genome of the lizard Calotes versicolor and a novel gene inversion in South Asian draconine agamids.
A complete mitochondrial DNA (mtDNA) sequence was determined for the lizard Calotes versicolor (Reptilia; Agamidae). The 16,670-bp genome with notable shorter genes for some protein-coding and tRNA genes had the same gene content as that found in other vertebrates. However, a novel gene arrangement was found in which the proline tRNA (trnP) gene is located in the light strand instead of its typ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mechanisms of Development
سال: 2009
ISSN: 0925-4773
DOI: 10.1016/j.mod.2009.06.147