Positive selection in gamete interaction proteins in Carnivora

Molecular Ecology, Journal Year: 2024, Volume and Issue: 33(5)

Published: Feb. 6, 2024

Abstract The absence of robust interspecific isolation barriers among pantherines, including the iconic South American jaguar ( Panthera onca ), led us to study molecular evolution typically rapidly evolving reproductive proteins within this subfamily and related groups. In study, we delved into evolutionary forces acting on zona pellucida (ZP) gamete interaction protein family sperm‐oocyte fusion pair IZUMO1‐JUNO across Carnivora order, distinguishing between Caniformia Feliformia suborders anticipating few significant diversifying changes in Pantherinae subfamily. A chromosome‐resolved genome assembly facilitated coding sequences, enabling reconstruction histories. Examining sequence variability more than 30 species revealed that exhibited significantly lower diversity compared its sister taxa, . Molecular analyses ZP2 ZP3, subunits directly involved sperm‐recognition, unveiled positive selection , although no were linked sperm binding. Structural cross‐linking ZP subunits, ZP4 ZP1 levels or complete selection. Notably, IZUMO1 displayed prominent signatures sites basal lineages both extending along subtree but absent Conversely, JUNO did not exhibit any tested clades. Eight Caniformia‐specific selected detected two JUNO‐interaction clusters. Our findings provide for first time insights trajectories order.

Language: Английский

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Gamete compatibility genes in mammals: candidates, applications and a potential path forward

Royal Society Open Science, Journal Year: 2017, Volume and Issue: 4(8), P. 170577 - 170577

Published: Aug. 1, 2017

Fertilization represents a critical stage in biology, where successful alleles of previous generation are shuffled into new arrangements and subjected to the forces selection next generation. Although much research has been conducted on how variation morphological behavioural traits lead fertilization patterns, surprisingly little is known about at molecular level, specifically genes expressed sperm egg themselves influence patterns. In mammals, several have identified whose products either or egg, which process, but specific mechanisms not yet known. Additionally, 2014 an interacting pair proteins was identified: ‘Izumo’ sperm, ‘Juno’ egg. With identification these comes first opportunity understand aspects identify genetic characteristics Here, we review recent progress our understanding gamete compatibility should provide helpful guide researchers interested untangling resulting impacts population biology evolutionary processes.

Language: Английский

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The evolution of extended parental care in glassfrogs: Do egg‐clutch phenotypes mediate coevolution between the sexes?

Ecological Monographs, Journal Year: 2020, Volume and Issue: 90(3)

Published: April 3, 2020

Abstract Many animals improve offspring survival through parental care. Research on coevolution between parents has provided key insight into the genesis and maintenance of biparental However, understanding family dynamics more broadly requires assessing potential male–female coevolutionary processes in widespread common context uniparental Here, we explore how pre‐zygotic maternal contributions, jelly coats oviposition sites, influence dependency change with evolution male‐only care glassfrogs. Egg appears ubiquitous among glassfrogs, repeated evolutionary transitions from brief female‐only to extended Glassfrogs also exhibit a diversity sex‐specific traits involving egg‐jelly oviposition‐site choice, egg‐attendance behaviors. We hypothesize these form functionally interchangeable suites that mediate embryos' susceptibility environmental risk. First, using parent‐removal field experiments, egg‐hydration assays, comparative analyses, found no evidence caring sex or duration alter adaptive functions overall benefits (across eight species). Rather, contributions use associated embryo same risks are reduced by prolonged Next, examined history pre‐ post‐zygotic traits, applying phylogenetic methods literature records our observations 40 species (71 total, ~ 47 % family). Because determine requirements, male might enable and/or compensate for contributions. Supporting this hypothesis, complex is always reductions changes sites. This pattern suggests clutch phenotype provide general mechanism investment If different combinations egg phenotypes ecologically equivalent, their interchangeability could allow coevolve sexes without compromising survival. Male‐only oviparous metazoans, occurring annelids, molluscs, arthropods, fishes, amphibians. Investigations offer new prospects broadening research

Language: Английский

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Interspecific comparisons of anuran embryonic epidermal landscapes and energetic trade‐offs in response to changes in salinity

Developmental Dynamics, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Abstract Background Freshwater salinization is an emerging stressor in amphibian populations, and embryonic stages are most vulnerable. To better understand the variation osmoregulation, we challenged embryos of two phylogenetically diverse anuran species, Xenopus laevis Lithobates (Rana) sylvaticus , along a gradient non‐lethal salinities. We hypothesized at higher salinities will display epidermal plasticity as coping response increase energy expenditure related to osmoregulation demands, thereby reducing for growth development. Results Scanning electron microscopy revealed extra mucus‐secreting cell type ionocyte proportions X. epidermis, suggesting more osmoregulatory machinery than L. . Under elevated salinity, displayed greater increases goblet proportions, mucus secretion, reductions apical area compared with sylvaticus. Although both species increased oxygen consumption rates reduced body length these effects were proportionally highest only this slowed developmental rates. Conclusion These findings support hypothesis that frog respond salinity by altering cellular landscape their epidermis. show types, well magnitude energetic trade‐offs vary among species.

Language: Английский

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An integrated proteomic and transcriptomic analysis of perivitelline fluid proteins in a freshwater gastropod laying aerial eggs

Journal of Proteomics, Journal Year: 2017, Volume and Issue: 155, P. 22 - 30

Published: Jan. 14, 2017

Language: Английский

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The Importance of Gene Duplication and Domain Repeat Expansion for the Function and Evolution of Fertilization Proteins

Frontiers in Cell and Developmental Biology, Journal Year: 2022, Volume and Issue: 10

Published: Jan. 27, 2022

The process of gene duplication followed by loss or evolution new functions has been studied extensively, yet the role plays in function and fertilization proteins is underappreciated. Gene observed many protein families including Izumo, DCST, ZP, TFP superfamily. Molecules mediating are part larger expressed a variety tissues, but structural modifications often facilitated their cooption into function. Repeat expansions functional domains within also provide opportunities for novel protein. ZP with domain repeat linked to species-specificity that experienced duplications were coopted sperm This review outlines importance proteins.

Language: Английский

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Immigrant reproductive dysfunction facilitates ecological speciation

Evolution, Journal Year: 2017, Volume and Issue: 71(10), P. 2510 - 2521

Published: Aug. 9, 2017

The distributions of species are not only determined by where they can survive - must also be able to reproduce. Although immigrant inviability is a well-established concept, the fact that immigrants need effectively reproduce in foreign environments has been fully appreciated study adaptive divergence and speciation. Fertilization reproduction sensitive life-history stages could detrimentally affected for non-native habitats. We propose "immigrant reproductive dysfunction" hitherto overlooked aspect isolation caused natural selection on immigrants. This idea supported results from experiments an externally fertilizing fish (sand goby, Pomatoschistus minutus). Growth condition adults were salinity whereas males spawning as had lower sperm motility hatching success than residents. interpret these evidence local adaptation or acclimation sperm, possibly components paternal care. resulting loss fitness, which we call dysfunction," potential reduce gene flow between populations with locally adapted reproduction, it may play role

Language: Английский

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Rafting on floating fruit is effective for oceanic dispersal of flightless weevils

Journal of Experimental Biology, Journal Year: 2018, Volume and Issue: unknown

Published: Jan. 1, 2018

Terrestrial species, especially non-vagile ones (those unable to fly or swim), cannot cross oceans without exploiting other animals floating objects. However, the colonisation history of flightless Pachyrhynchus weevils, inferred from genetic data, reveals their ability travel long distances colonise remote islands. Here, we used captive-bred P. jitanasaius analyse (i) physiological tolerance weevils (egg, larva and adult stages) different levels salinity; (ii) survival rate larvae in a simulated ocean environment laboratory; (iii) field experiment using fruit fish poison tree on Kuroshio Current Pacific Ocean. We found that seawater was lower than fresh water, although if survived 7 days immersion seawater, some emerged as adults subsequent rearing process. No for more 2 days, regardless salinity level. After separately 6 salt water laboratory Current, two 18 fruit. This study provides first empirical evidence can survive ‘rafting’ currents eggs these have highest probability oceanic barrier. may facilitate over-the-sea dispersal insects further shape distribution speciation pattern Western

Language: Английский

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Egg Coat Proteins Across Metazoan Evolution

Current topics in developmental biology/Current Topics in Developmental Biology, Journal Year: 2018, Volume and Issue: unknown, P. 443 - 488

Published: Jan. 1, 2018

Language: Английский

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Cellular and molecular modification of egg envelope hardening in fertilization

Biochimie, Journal Year: 2020, Volume and Issue: 181, P. 134 - 144

Published: Dec. 16, 2020

Language: Английский

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