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Aquaporin splice variation differentially modulates channel function during marine teleost egg hydration
(Public Library of Science, 2023-11-27)
Aquaporin-mediated oocyte hydration is a developmentally regulated adaptive mechanism that co-occurs with meiosis resumption in marine teleosts. It provides the early embryos with vital water until ...
Functional Evolution of Clustered Aquaporin Genes Reveals Insights into the Oceanic Success of Teleost Eggs
(Oxford University Press, 2023-03-22)
Aquaporin-mediated oocyte hydration is considered important for the evolution of pelagic eggs and the radiative success of marine teleosts. However, the molecular regulatory mechanisms controlling this ...
Neurohypophysial and paracrine vasopressinergic signaling regulates aquaporin trafficking to hydrate marine teleost oocytes
(Frontiers, 2023-08-11)
The dual aquaporin (Aqp1ab1/Aqp1ab2)-mediated hydration of marine teleost eggs, which occurs during oocyte meiosis resumption (maturation), is considered a key adaptation underpinning their evolutionary ...
A multiplier peroxiporin signal transduction pathway powers piscine spermatozoa
(National Academy of Sciences, 2021-03-09)
The primary task of a spermatozoon is to deliver its nuclear payload to the egg to form the next-generation zygote. With polyandry repeatedly evolving in the animal kingdom, however, sperm competition ...
Unravelling the complex duplication history of deuterostome glycerol transporters
(MDPI, 2020-07-10)
Transmembrane glycerol transport is an ancient biophysical property that evolved in selected subfamilies of water channel (aquaporin) proteins. Here, we conducted broad level genome (>550) and transcriptome ...
Lineage-level divergence of copepod glycerol transporters and the emergence of isoform-specific trafficking regulation
(Nature Research, 2021-05-31)
Transmembrane conductance of small uncharged solutes such as glycerol typically occurs through aquaglyceroporins (Glps), which are commonly encoded by multiple genes in metazoan organisms. To date, ...
Role of Ion Channels in the Maintenance of Sperm Motility and Swimming Behavior in a Marine Teleost
(MDPI, 2022-10-11)
In oviparous marine fishes, the hyperosmotic induction of sperm motility in seawater (SW) is well established, however, the potential function of ion channels in the maintenance of post activated ...
Auto-Adhesion Potential of Extraocular Aqp0 during Teleost Development
(Public Library of Science, 2016-05-06)
AQP0 water channels are the most abundant proteins expressed in the mammalian lens fiber membranes where they are essential for lens development and transparency. Unlike other aquaporin paralogs, mammalian ...
The vertebrate Aqp14 water channel is a neuropeptide-regulated polytransporter
(Springer Nature, 2019-12-11)
Water channels (aquaporins) were originally discovered in mammals with fourteen subfamilies now identified (AQP0-13). Here we show that a functional Aqp14 subfamily phylogenetically related to AQP4-type ...
Developmental RNA-Seq transcriptomics of haploid germ cells and spermatozoa uncovers novel pathways associated with teleost spermiogenesis
(Nature Research, 2022-08-19)
In non-mammalian vertebrates, the molecular mechanisms involved in the transformation of haploid germ cells (HGCs) into spermatozoa (spermiogenesis) are largely unknown. Here, we investigated this process ...