Results 21 to 30 of about 97,268 (258)
BMC Ecology and Evolution, 2021 Background One of the dangers of global climate change to wildlife is distorting sex ratios by temperature-induced sex reversals in populations where sex determination is not exclusively genetic, potentially leading to population collapse and/or sex ...
Edina Nemesházi +2 more
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Prediction of sex-determination mechanisms in avian primordial germ cells using RNA-seq analysis
Scientific Reports, 2022 In birds, sex is determined through cell-autonomous mechanisms and various factors, such as the dosage of DMRT1. While the sex-determination mechanism in gonads is well known, the mechanism in germ cells remains unclear.
Kennosuke Ichikawa +5 more
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The evolutionary process of mammalian sex determination genes focusing on marsupial SRYs [PDF]
BMC Evolutionary Biology, 2018 Maleness in mammals is genetically determined by the Y chromosome. On the Y chromosome SRY is known as the mammalian male-determining gene. Both placental mammals (Eutheria) and marsupial mammals (Metatheria) have SRY genes. However, only eutherian SRY genes have been empirically examined by functional analyses, and the involvement of marsupial SRY in ...
Yukako Katsura +4 more
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Sex Determination of Dry Human Mandible Using Metrical Parameters in Mahakaushal Region of Madhya Pradesh, India: A Cross-sectional Study [PDF]
International Journal of Anatomy Radiology and Surgery, 2021 Introduction: Determination of sex and age from skeletal remains is not only important for forensic science but also for Anatomy, Forensic Odontology, Anthropology and Palaeontology examination. Mandible next to the pelvis in human remains help us in
RAJESHWARI KANWAR +3 more
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Evidence for avian cell autonomous sex identity (CASI) and implications for the sex-determination process? [PDF]
Chromosome Research, 2011 For the majority of animals, males and females are obviously different in terms of appearance, behaviour and physiology, and until recently, these differences were considered to be the result of hormone actions. However, there is now considerable evidence that the development of some sexually dimorphic structures/behaviours is a function of properties ...
Clinton, M +3 more
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Caste-biased Expression of fem and Amdsx Genes in Apis mellifera ligustica (Hymenoptera: Apidae)
Sociobiology, 2021 Sex determination and caste differentiation are two crucial processes for morphology building in honeybees. It is unclear whether there is an interaction between these two processes.
Lu-Xia Pan, Fu-Ping Cheng, Zi-Long Wang
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Sex determination in mammalian germ cells
Asian Journal of Andrology, 2015 Germ cells are the precursors of the sperm and oocytes and hence are critical for survival of the species. In mammals, they are specified during fetal life, migrate to the developing gonads and then undergo a critical period during which they are ...
Cassy M Spiller, Josephine Bowles
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Ecology and Evolution, 2023 Understanding genome‐wide responses to environmental conditions during embryogenesis is essential for discerning the evolution of developmental plasticity and canalization, two processes generating phenotypic variation targeted by natural selection. Here,
Thea B. Gessler +2 more
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Sex Determination Using Mastoid Process Measurements in Brazilian Skulls [PDF]
International Journal of Morphology, 2008 Las caracteristicas del proceso mastoides son de gran utilidad para el diagnostico del sexo. De Paiva & Segre (2003) describieron que era posible el diagnostico del sexo, en base a la determinacion del area del triangulo formado entre los puntos porion, mastoidale y asterion.
Suazo Galdames, Iván Claudio +2 more
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Cortisol-induced masculinization: does thermal stress affect gonadal fate in pejerrey, a teleost fish with temperature-dependent sex determination? [PDF]
PLoS ONE, 2009 BACKGROUND: Gonadal fate in many reptiles, fish, and amphibians is modulated by the temperature experienced during a critical period early in life (temperature-dependent sex determination; TSD).
Ricardo S Hattori +9 more
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