Exceptional sperm cooperation in the wood mouse [PDF]
, 2002 Spermatozoa from a single male will compete for fertilization of ova with spermatozoa from another male when present in the female reproductive tract at the same time.
AH Harcourt +32 more
core +1 more source
Sperm is epigenetically programmed to regulate gene transcription in embryos. [PDF]
, 2016 For a long time, it has been assumed that the only role of sperm at fertilization is to introduce the male genome into the egg. Recently, ideas have emerged that the epigenetic state of the sperm nucleus could influence transcription in the embryo ...
Allen, George E +12 more
core +3 more sources
The Drosophila caspase Ice is important for many apoptotic cell deaths and for spermatid individualization, a nonapoptotic process [PDF]
, 2006 Caspase family proteases play important roles in the regulation of apoptotic cell death. Initiator caspases are activated in response to death stimuli, and they transduce and amplify these signals by cleaving and thereby activating effector caspases.
Baehrecke, Eric H. +8 more
core +2 more sources
Biobanking efforts and new advances in male fertility preservation for rare and endangered species
Asian Journal of Andrology, 2015 Understanding and sustaining biodiversity is a multi-disciplinary science that benefits highly from the creation of organized and accessible collections of biomaterials (Genome Resource Banks).
Pierre Comizzoli
doaj +1 more source
Meiotic sex chromosome cohesion and autosomal synapsis are supported by Esco2.
, 2020 In mitotic cells, establishment of sister chromatid cohesion requires acetylation of the cohesin subunit SMC3 (acSMC3) by ESCO1 and/or ESCO2. Meiotic cohesin plays additional but poorly understood roles in the formation of chromosome axial elements (AEs)
Biswas, U. +6 more
core +1 more source
Tubulobulbar complex: Cytoskeletal remodeling to release spermatozoa
Reproductive Biology and Endocrinology, 2012 Tubulobulbar complexes (TBCs) are actin-based structures that help establish close contact between Sertoli–Sertoli cells or Sertoli–mature germ cells (spermatids) in the seminiferous tubules of the testes.
Upadhyay Rahul D +3 more
doaj +1 more source
Ezrin: a regulator of actin microfilaments in cell junctions of the rat testis
Asian Journal of Andrology, 2015 Ezrin, radixin, moesin and merlin (ERM) proteins are highly homologous actin-binding proteins that share extensive sequence similarity with each other.
N Ece Gungor-Ordueri +2 more
doaj +1 more source
Structure and molecular basis of spermatid elongation in the Drosophila testis
Open Biology, 2023 Spermatid elongation is a crucial event in the late stage of spermatogenesis in the Drosophila testis, eventually leading to the formation of mature sperm after meiosis.
Qiuru Huang +7 more
doaj +1 more source
, an -like gene, is essential for spermatid differentiation in the flatworm [PDF]
, 2009 Background Failure of sperm differentiation is one of the major causes of male sterility. During spermiogenesis, spermatids undergo a complex metamorphosis, including chromatin condensation and cell elongation. Although the resulting sperm morphology and
Sekii, K. +4 more
core +2 more sources
Asian Journal of Andrology, 2015 Importin proteins were originally characterized for their central role in protein transport through the nuclear pores, the only intracellular entry to the nucleus.
Kate L. Loveland +5 more
doaj +1 more source