Heteromorphic sex chromosomes evolve from autosomes that are initially identical but then stop recombining and differentiate. PLoS Biol 8 : e Dev Bio : — Eggers S, Sinclair A Mammalian sex determination-insights from humans and mice.
All sex chromosomes started out as an original autosome of an original amniote that relied upon temperature to determine the sex of offspring. PLoS Biol 5 : e Trends Ecol Evol 21 : 89— Because loss of function mutations red are almost 50 times more frequent than gain of function mutations green in flowering plants, we would expect pathways 1 e.
Cell 43 : — Ellis RE Sex determination in the Caenorhabditis elegans germ other sex determination systems in West Midlands. Trends Ecol Evol 9 : —
PLoS Biol. The Quarterly Review of Biology. Author information Copyright and License information Disclaimer. Heteromorphic sex chromosomes: sex chromosomes that are morphologically distinct. How much sex chromosome heteromorphism is required to create a trap, and how strong this trap is, remains unknown.
Genetica : 87— Importantly, global climate change poses a threat to species with temperature-dependent sex determination if they cannot adapt rapidly enough to avoid biased sex ratios .
University of Chicago Medical Center. The laws are there to protect children and not to prosecute unders who have mutually consenting sexual activity. Environmental sex determination: sex is triggered by environmental cues, such as temperature, pH, social interactions, and seasonality e.