Exploring the evolution of environmental sex determination especially in reptiles in Durham

Gynandromorphs Animals with both male and female phenotypic characteristics, often distributed bilaterally. Figure 5: Old and new models for sex-determination mechanisms. Mol Endocrinol 8 : — Sex chromosomes that are not morphologically distinguishable but nonetheless influence sex determination.

A timecourse analysis of systemic and gonadal effects of temperature on sexual development of the red-eared slider turtle Trachemys scripta elegans. Here, the converse argument applies. From there, the water becomes murkier because SRY has been proposed to act as both an activator 3738 and a repressor 39 — 41 of transcription.

Now, rather than being seen as Manichean opposites, GSD and ESD are probably best viewed as distinct engines with partially overlapping mechanisms 86 Soullier, S. Question marks denote putative interactions between Leydig or theca cells and germ cells.

Exploring the evolution of environmental sex determination especially in reptiles in Durham считаю, что

GodleyA. Download citation. Evolution Standora, E. Get the most important science stories of the day, free in your inbox. Issue Date : 28 April Sign up for Nature Briefing. By submitting a comment you agree to abide by our Terms and Community Guidelines.

Recurrent SOX9 deletion campomelic dysplasia due to somatic mosaicism in the father. R-spondin1 plays an essential role in ovarian development through positively regulating Wnt-4 signaling. Bioessays 17 : 71 — Colocalization of WT1 and cell proliferation reveals conserved mechanisms in temperature-dependent sex determination.

Exploring the evolution of environmental sex determination especially in reptiles in Durham

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  • Exploring the evolution of environmental sex determination, especially in reptiles. J Evol Biol. Nov;19(6) doi: /. Fish, amphibians, turtles, and lizards each exhibit more than one method of sex determination, which fall into genetic (GSD) Department of Cell Biology, Duke University Medical Center, Durham, North Carolina Exploring the evolution of environmental sex determination, especially in reptiles.
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  • May 12,  · Abstract. Environmental sex determination has been documented in a variety of organisms for many decades and the adaptive significance of this unusual sex‐determining mechanism has been clarified empirically in most cases. In contrast, temperature‐dependent sex determination (TSD) in amniote vertebrates, first noted 40 years ago in a lizard, has defied a general satisfactory evolutionary explanation Cited by: Abstract. Environmental sex determination has been documented in a variety of organisms for many decades and the adaptive significance of this unusual sex-determining mechanism has been clarified empirically in most cases. In contrast, temperature-dependent sex determination (TSD) in amniote vertebrates, first noted 40 years ago in a lizard, has defied a general satisfactory evolutionary explanation Cited by:
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