Genetics of Sexual Differentiation and Sexually Dimorphic by Daisuke Yamamoto

By Daisuke Yamamoto

The sphere of genetics is swiftly evolving and new scientific breakthroughs are occuring due to advances in wisdom of genetics. Advances in Genetics continually publishes vital stories of the broadest curiosity to geneticists and their colleagues in affiliated disciplines.

  • Nine chapters at the such a lot complicated learn at the differentiating behaviors between sexes
  • More than three hundred pages of articles from top foreign scientists, this quantity bargains genetic behaviorial details relating to drosophila, mice, birds, voles, and mammals
  • Hot issues contain intercourse modifications in mind and behaviour; genomic imprinting and the evolution of intercourse transformations; gene law; peptide pheromone construction and reception, and more

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Extra resources for Genetics of Sexual Differentiation and Sexually Dimorphic Behaviors

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Sex-dependent resistance to the pathogenic fungus Cryptococcus neoformans. Genetics 173, 677–683. , and Kovacs, A. L. (2006). Effects of sex and insulin/insulin-like growth factor-1 signaling on performance in an associative learning paradigm in Caenorhabditis elegans. Genetics 174, 309–316. Von Stetina, S. , and Miller, D. M. (2006). The motor circuit. Int. Rev. Neurobiol. 69, 125–167. , and Shingai, R. (2004). Neurons regulating the duration of forward locomotion in Caenorhabditis elegans. Neurosci.

Unpublished data). In neither of these cases is the functional significance of sexually dimorphic gene expression understood; however, it is noteworthy that both of these neurons are implicated in sensory behavior. , 2005). Interestingly, males and hermaphrodites differ in their propensity to enter the dauer stage (Ailion and Thomas, 2000), suggesting that sex differences in ADF could have functional consequences. , 1986). It is quite possible that these differences represent only a small glimpse of the true extent of sex differences in gene expression in the core nervous system, as C.

Here we review the known sex differences in C. elegans behavior and, to the extent to which it has been determined, discuss the genetic and neural underpinnings of these differences. 1. Hermaphrodite behavior a. Egg-laying behavior Under favorable conditions, hermaphrodites incubate early newly fertilized eggs (produced either by self- or cross-fertilization) in the uterus for several hours before they are laid. Egg-laying is a result of regulated contraction of the vulval muscles: on contraction, the vulva opens transiently and a single egg is laid.

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