GILLETTE, Rhanor*; YAFREMAVA, Liudmila; University of Illinois at Urbana-Champaign; University of Illinois at Urbana-Champaign: Evolution and Function in Serotonergic Systems Serotonin was first identified as a neurotransmitter in clams, and then mammalian brain. The history of its evolution as an intercellular messenger and CNS neurotransmitter is only recently begun to be appreciated through comparative studies […]
sessions: S6-1
Urbilaterian Reproduction the evolution of metazoan germ cell specification mechanisms
Meeting Abstract S6-1.4 Jan. 5 Urbilaterian Reproduction: the evolution of metazoan germ cell specification mechanisms EXTAVOUR, Cassandra G M; University of Cambridge cgme2@hermes.cam.ac.uk A key focus of evolutionary developmental biology in recent years has been to elucidate the evolution of developmental mechanisms as a means to reconstructing hypothetical last common ancestors of various sister clades. Promiment among […]
Postcopulatory male-female interactions in Drosophila melanogaster dissecting the female side
Meeting Abstract S6-1.3 Jan. 5 Postcopulatory male-female interactions in Drosophila melanogaster: dissecting the female side. LAWNICZAK, Mara*; BEGUN, David; UCL/UCDavis; UCDavis marakat@gmail.com In Drosophila, what we know about the proteins involved in post-mating interactions is heavily biased towards the male side. Genes important in female-mediation of seminal fluid and sperm (including female effects on the outcome of […]
Genetics and molecular evolution of male reproductive genes
Meeting Abstract S6-1.6 Jan. 5 Genetics and molecular evolution of male reproductive genes CIVETTA, Alberto; University of Winnipeg a.civetta@uwinnipeg.ca It has been shown that genes with a role in reproduction evolve relatively faster than others. Most comparative genomics analyses however, have pooled a wide variety of genes into a single sex-related category and differences in rates across […]
Exploring the Genetics of Conspecific Sperm Precedence in Two Ground Cricket Species
Meeting Abstract S6-1.5 Jan. 5 Exploring the Genetics of Conspecific Sperm Precedence in Two Ground Cricket Species HOWARD, Daniel J.*; BRASWELL, W. Evan; New Mexico State University dahoward@nmsu.edu Allonemobius fasciatus and A. socius are closely related ground crickets that are reproductively isolated by conspecific sperm precedence. We have examined the genetic basis of this isolation through QTL […]
Expansion of sperm gene families in D melanogaster
Meeting Abstract S6-1.2 Jan. 5 Expansion of sperm gene families in D. melanogaster DORUS, S; University of Bath T.L.Karr@bath.ac.uk Although new gene creation is one crucial process in the evolution of biological novelty there remain many questions surrounding evolutionary processes immediately following gene duplication. Here, we analyze the expansion of two sperm gene families, CG17450 (a tektin-like […]
A sperm’s eye view of evolution
Meeting Abstract S6-1.1 Jan. 5 A sperm’s eye view of evolution KARR, T*; DORUS, S; GERIKE, U; University of Bath; University of Bath; University of Bath T.L.Karr@bath.ac.uk A very limited amount of knowledge exists concerning the genetic and molecular basis underlying the diversity of sperm form and function. We have identified 381 proteins of the Drosophila melanogaster […]
NOVEL ASPECTS OF THE GONADOTROPIN-RELEASING HORMONE AXIS IN THREE MODEL CHORDATES
Meeting Abstract S6-1.6 Saturday, Jan. 5 NOVEL ASPECTS OF THE GONADOTROPIN-RELEASING HORMONE AXIS IN THREE MODEL CHORDATES. TELLO, J.S.**; ADAMS, B.A.; WU, S; SHERWOOD, N.M.; Univ. of Victoria, British Columbia jtello@uvic.ca In humans, the neurohormone gonadotropin-releasing hormone (GnRH) facilitates reproductive cycling beginning at puberty. GnRH is produced in the hypothalamus and when released, binds to its cognate […]
Mechanisms of Action of Gonadotropin-inhibitory hormone in birds and mammals
Meeting Abstract S6-1.4 Saturday, Jan. 5 Mechanisms of Action of Gonadotropin-inhibitory hormone in birds and mammals UBUKA, T*; BENTLEY, GE; Univ. of California, Berkeley ubukat@berkeley.edu Gonadotropin-releasing hormone (GnRH) is one of the primary factors responsible for the hypothalamic control of gonadotropin secretion; gonadotropin inhibitory hormone (GnIH) is another. GnIH homologs are present in the brains of many […]
Gonadotropin-inhibitory hormone A synopsis
Meeting Abstract S6-1.3 Saturday, Jan. 5 Gonadotropin-inhibitory hormone: A synopsis BENTLEY, GE*; MCGUIRE, N; CALISI, RM; PERFITO, N; UBUKA, T; UC Berkeley gb7@berkeley.edu Gonadotropin inhibitory hormone (GnIH) was discovered 8 years ago in birds. Its identification raised the possibility that gonadotropin releasing hormone (GnRH) is not the sole hypothalamic neuropeptide that directly influences pituitary gonadotropin release. Our […]
