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Atrina maura; developmental stages; females; gonads; males; resting periods; sex ratio; spawning; Gulf of California; Mexico
Abstract:
... The reproductive cycle and growth of the pen shell, Atrina maura , which was cultured in the Ensenada Pabellones lagoon system, Gulf of California, from March 2008 to March 2009, is described in this article. Histological techniques and the condition index were used to determine its reproductive condition. The sex ratio was 0.57 females:1.72 males within the population studied. There were no diffe ...
S. Alexandra Garcia-Moreno, et al. ; Christopher R. Futtner; Isabella M. Salamone; Nitzan Gonen; Robin Lovell-Badge; Danielle M. Maatouk; Show all 6 Authors
cell differentiation; chromatin; epigenetics; females; genes; gonads; males; mice; mutation; regulatory sequences; sex determination; sexual development
Abstract:
... Cis-regulatory elements are critical for the precise spatiotemporal regulation of genes during development. However, identifying functional regulatory sites that drive cell differentiation in vivo has been complicated by the high numbers of cells required for whole-genome epigenetic assays. Here, we identified putative regulatory elements during sex determination by performing ATAC-seq and ChIP-se ...
... The adverse effects of endocrine disrupting chemicals (EDCs) on aquatic wildlife and human health represent a current issue of high public concern. Even so, they are still poorly studied in aquatic environments of South America. The aim of the present study was to investigate the impact of EDCs in five cascading reservoirs from the Iguaçu River, evaluating reproductive endpoints in three native fi ...
Luis Miguel Garcia-Segura, et al. ; Lucas E. Cabrera Zapata; Carla D. Cisternas; Camila Sosa; Maria Angeles Arevalo; María Julia Cambiasso; Show all 6 Authors
... Several X-linked genes are involved in neuronal differentiation and may contribute to the generation of sex dimorphisms in the brain. Previous results showed that XX hypothalamic neurons grow faster, have longer axons, and exhibit higher expression of the neuritogenic gene neurogenin 3 (Ngn3) than XY before perinatal masculinization. Here we evaluated the participation of candidate X-linked genes ...