Integrative Zoology, Journal Year: 2023, Volume and Issue: 19(5), P. 1004 - 1008
Published: Nov. 28, 2023
Based on a chromosome-level genome assembly, burst of new genes with different structures but similar testis-specific expression pattern was detected in tree sparrow.
Language: Английский
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown
Published: April 18, 2025
Abstract Gene family expansion underlies a host of biological innovations across the tree life. Understanding why specific gene families expand or contract requires comparative genomic investigations clarifying further how species adapt in wild. This study investigates change dynamics within several Daphnia , group freshwater microcrustaceans that are useful model systems for evolutionary genetics. We employ genomics approaches to understand forces driving evolution and draw upon candidate numbers . Our results suggest genes related stress responses glycoproteins generally taxa, we investigate hypotheses adaptation may underpin expansions. Through these analyses, shed light on interplay between expansions selection other ecologically relevant response families. While show generalities turnover (i.e., DNA repair mechanisms), most is driven species-specific manner. Additionally, while general trends towards positive some expanding families, many not undergoing selection, highlighting complex nature diversification research enhances understanding individual provides case prone change.
Language: Английский
Citations
0
Aquaculture Reports, Journal Year: 2024, Volume and Issue: 35, P. 101957 - 101957
Published: Feb. 6, 2024
Spermatogenesis is the production of spermatozoa by testes, a process that associated with reproduction in males. Amphioctopus fangsiao an economically important species from northern coast China, and little research has been done on spermatogenesis this species. In study, we performed transcriptome analysis testis other somatic tissues. The maturing stage development was selected, which emergence observed. A total 15,773 differentially expressed genes were identified, including 8,922 upregulated 6,851 downregulated genes. GO KEGG enrichment analyses to explore functions related spermatogenesis, interactions between examined constructing protein interaction networks. Pathways oxytocin signaling pathway, calcium FOXO DNAH family, key expression levels 25 verified qRT-PCR. results for spermatogenesis-related will provide insights into processes A. fangsiao.
Language: Английский
Citations
1
Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)
Published: Dec. 28, 2024
The Wanshan mercury mining area (WMMA) in Guizhou Province, China, has been identified as a region at high ecological risk owing to heavy metal contamination. This study employed non-lethal sampling methods, using the phalanges of Pelophylax nigromaculatus WMMA analytical material. Ten (metalloid) elements were selected for analysis, including Hg, Cr, Mn, Ni, Cu, Zn, Cd, Pb, As, and Se. These measured inductively coupled plasma mass spectrometry (ICP-MS), while Hg was determined atomic fluorescence (AFS). bioaccumulation characteristics metals P. analyzed through factor (BAF), extent pollution along with potential assessed index (RI). scaled (SMI) utilized evaluate body condition nigromaculatus. Additionally, combination Spearman correlation analysis non-negative matrix factorization (NMF) identify sources contributions elements. results indicated that distribution varied. Except concentrations essential trace significantly higher than those non-essential soil found be low, whereas exposure from water high. presence poses significant nigromaculatus, As primary contributors this risk. environmental follows: Se mainly originated sources; Cd primarily came atmospheric Cr Cu natural activities Mn Ni had multiple composite sources. Although negatively impacted physical no differences SMI observed across different regions. We believe is attributable levels Se, which effectively mitigate toxicity metals. demonstrated frog assessment are simple, safe, can serve useful indicators help pollutants.
Language: Английский
Citations
0
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown
Published: Feb. 21, 2023
Abstract The creation of new genes is a major force evolution. Despite as an important mechanism that generated genes, segmental duplication (SD) has yet to be accurately identified and fully characterized in birds because the repetitive complexity leads misassignment misassembly sequence. In addition, SD may lead gene copies, which makes it possible test “out testis” hypothesis suggests are frequently born with testis-specific expression. Using high-quality chromosome-level assembly, we performed systematic analysis presented comprehensive landscape SDs tree sparrow ( Passer montanus ). We detected co-localization newly expanded long terminal repeat retrotransposons (LTR-RTs), both derived from enriched microchromosomes. mostly found eight families including C 2 H ZNF, OR, PIM, PAK, MROH, HYDIN, HSF ITPRIPL . large majority members these have evolved pseudogenes, whereas there still some copies preserved transcriptional activity. Among transcriptionally active members, different diverse structures functions shared similar testis-biased expression pattern, consistent hypothesis. Through case genome assembly sparrow, reveal contribute formation genes. Our study provides understanding emergence, fate duplicated how might participate processes shape
Language: Английский
Citations
0
Integrative Zoology, Journal Year: 2023, Volume and Issue: 19(5), P. 1004 - 1008
Published: Nov. 28, 2023
Based on a chromosome-level genome assembly, burst of new genes with different structures but similar testis-specific expression pattern was detected in tree sparrow.
Language: Английский
Citations
0