Evolution and regulation of animal sex chromosomes

Nature Reviews Genetics, Journal Year: 2024, Volume and Issue: unknown

Published: July 18, 2024

Language: Английский

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Sea anemone genomes reveal ancestral metazoan chromosomal macrosynteny

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2020, Volume and Issue: unknown

Published: Oct. 30, 2020

Abstract Draft genome sequences of non-bilaterian species have provided important insights into the evolution metazoan gene repertoire. However, there is little information about clusters, architectures and karyotypes during animal evolution. In this regard, slowly evolving anthozoan Cnidaria, sister group Bilateria, are particularly informative. Here we report chromosome-level assemblies two related cnidarians, sea anemones Nematostella vectensis Scolanthus callimorphus . We find a robust set 15 chromosomes with clear one-to-one correspondence between species. Both anemone genomes show remarkable chromosomal conservation other several bilaterians sponge Ephydatia muelleri , allowing us to reconstruct ancestral cnidarian blocks, consisting at least 19 16 linkage groups, respectively. that, in contrast Hox NK clusters investigated cnidarians largely disintegrated, despite presence staggered hox/gbx expression This loss microsynteny may be facilitated by shorter distances cis-regulatory their cognate transcriptional start sites. line no evidence for topologically associated domains, suggesting fundamental differences long-range regulation compared vertebrates. These data suggest that large sets genes been retained groups some extant lineages, yet, higher order 3D architecture evolved only after cnidarian-bilaterian split.

Language: Английский

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Pan-evolutionary and regulatory genome architecture delineated by an integrated macro- and microsynteny approach

Nature Protocols, Journal Year: 2024, Volume and Issue: 19(6), P. 1623 - 1678

Published: March 21, 2024

Language: Английский

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The role of DNA methylation reprogramming during sex determination and sex reversal in the Pacific oyster Crassostrea gigas

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 259, P. 128964 - 128964

Published: Jan. 12, 2024

Language: Английский

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Evolution and expression patterns of the neo-sex chromosomes of the crested ibis

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Feb. 23, 2024

Abstract Bird sex chromosomes play a unique role in sex-determination, and affect the sexual morphology behavior of bird species. Core waterbirds, major clade birds, share common characteristics being sexually monomorphic having lower levels inter-sexual conflict, yet their chromosome evolution remains poorly understood. Here, by we analyse chromosome-level assembly female crested ibis (Nipponia nippon), typical core waterbird. We identify neo-sex resulting from fusion microchromosomes with ancient chromosomes. These events likely occurred following divergence Threskiornithidae Ardeidae. The neo-W exhibits slow degradation, which is reflected its retention abundant gametologous genes. Neo-W genes display an apparent ovary-biased gene expression, largely driven that are retained on W but lost other results provide new insights into evolutionary history expression patterns for

Language: Английский

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Systematic screening and dynamic profiling of germline regulatory pathways and spermatogonial surface markers in a bivalve mollusc

Computational and Structural Biotechnology Journal, Journal Year: 2025, Volume and Issue: 27, P. 519 - 530

Published: Jan. 1, 2025

Language: Английский

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Cephalopod sex determination and its ancient evolutionary origin

Current Biology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Octopuses, squids, and cuttlefishes-the coleoid cephalopods-are a remarkable branch in the tree of life whose members exhibit repertoire sophisticated behaviors.1 As clade, coleoids harbor an incredible variety novel traits, including most complex nervous system among invertebrates, derived camera-type eyes, rapid adaptive camouflage abilities.2,3 The burst evolutionary novelty that distinguishes cephalopods is even more striking phylogenetic context; are deeply diverged lineage last shared common ancestor with other extant molluscs Cambrian period, roughly 550 million years ago.4,5 With recent advances genome sequencing technologies, we have capability to explore genomic foundations cephalopod novelties. Here, using PacBio long-read DNA Iso-Seq full-length mRNA sequencing, provide chromosome-scale reference annotation for female California two-spot octopus (O. bimaculoides). Our assembly reveals has just one sex chromosome, consistent ZO karyotype, whereas male two (ZZ), providing first evidence genetic determination cephalopods. We use our combination existing information from create whole-genome alignments this group demonstrate chromosome ancient origin, before radiation approximately 480 ago,4 been conserved present day all genomes available.

Language: Английский

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Identification of Sex-Related Genes Across Bivalves Reveals Key Genes In Gonad Development and Sex Reversal

Published: Jan. 1, 2025

Language: Английский

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Identification of sex-related genes across bivalves reveals key genes in gonad development and sex reversal

Comparative Biochemistry and Physiology Part D Genomics and Proteomics, Journal Year: 2025, Volume and Issue: unknown, P. 101506 - 101506

Published: April 1, 2025

Language: Английский

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Single-cell RNA sequencing reveals cellular heterogeneity and gonadal niche interactions in the hermaphroditic scallop Argopecten irradians

Water Biology and Security, Journal Year: 2025, Volume and Issue: unknown, P. 100405 - 100405

Published: April 1, 2025

Language: Английский

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