农学最新文献

{"title":"Histological demonstration of gonad development in the banana shrimp, Fenneropenaeus merguiensis","authors":"Jirakanit Chimnual ,&nbsp;Jirawat Saetan ,&nbsp;Wilaiwan Chotigeat","doi":"10.1016/j.aaf.2023.06.003","DOIUrl":"10.1016/j.aaf.2023.06.003","url":null,"abstract":"<div><div>The genetic diversity of the banana shrimp <em>Fenneropenaeus merguiensis</em> is at risk because of over-harvesting, which consequently reduces food security. This endangerment is exacerbated because this species is not commonly cultivated by farmers. Overall, these factors necessitate conservation of this shrimp species across its natural habitat. Information on the migration of primordial germ cells (PGCs) to form a gonad is essential for shrimp preservation techniques such as broodstock preparation, sex differentiation, and germ cell transplantation. In this study, histological analysis and <em>in situ</em> hybridization of <em>vasa</em> expression (from embryo to testis development) were used to demonstrate the movement of PGCs. Hematoxylin and Eosin staining and <em>in situ</em> hybridization with the VASA probe revealed that the PGCs migrated retrogradely along the midgut, colonizing the area between the hepatopancreas and heart, a region that becomes the genital ridge in the postlarval stage. External sexual organs appeared at approximately 4 months of age. Through real-time PCR, the expression of the <em>vasa</em> gene was detected early on postlarval day 7, whereas its abundant expression was detected in the ovaries and testes of adult shrimp. This study could help with the identification and monitoring of PGCs or spermatogonia in banana shrimp and facilitate the implementation of other germ cell-relevant techniques in the future.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 1","pages":"Pages 94-104"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84587990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The formation, maintenance, and loss of island biodiversity.","authors":"Cong Liu, Yang-Qing Luo, Yu-Jing Yan, Yang-He-Shan Yang, Di Zeng, Yu-Hao Zhao, Xing-Feng Si","doi":"10.16288/j.yczz.24-223","DOIUrl":"https://doi.org/10.16288/j.yczz.24-223","url":null,"abstract":"<p><p>Due to the unique geographical features of large numbers, isolated by water and diverse formation histories, islands have become natural laboratories for ecological and evolutionary research. Islands have a high proportion of endemic species and disharmony in representing the species compared with that in the continent, which provides a good opportunity to explore the formation of island biodiversity. In this review, we focuse on island ecosystems and describes the progress of research in island biogeography in recent years from three aspects: formation, maintenance, and loss of island biodiversity. First, we take several representative island systems in the world as examples to introduce the formation mechanism of island biodiversity from species dispersal and immigration, population establishment and selection, species evolution and adaptive radiation. Based on the Equilibrium Theory of Island Biogeography, we then review the species-area relationship and species-isolation relationship and focus on the research progress in community assembly, including Diamond's rule, nestedness pattern, the framework of community structure of island biota, and species interactions on islands. We also discuss the high extinction risks of island species threatened from natural and human disturbances, especially from the impact of habitat loss and change, climate change, alien species invasion and the synergistic effect of these factors on the loss of island biodiversity. Finally, based on the status of island biodiversity, we summarized the current conservation practices for island biodiversity and possible research frontiers in island biogeographic studies.</p>","PeriodicalId":35536,"journal":{"name":"遗传","volume":"47 1","pages":"101-132"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142955915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of selenium nanoparticles extracted from Bacillus subtilis and its antibacterial effects in Onychostoma macrolepis: Insight into ferroptosis","authors":"Chao Zhu ,&nbsp;Guofan Peng ,&nbsp;Jincan Li ,&nbsp;Yalong Deng ,&nbsp;Tianqi Jin ,&nbsp;Qimin Liu ,&nbsp;Heran Cao ,&nbsp;Zifang Wu ,&nbsp;Yuxuan Ma ,&nbsp;Zhenpeng Li ,&nbsp;Yang Wang ,&nbsp;Lijuan Zheng ,&nbsp;Xiangtong Yuan ,&nbsp;Lijun Zhang ,&nbsp;Fangxia Yang ,&nbsp;Hong Ji ,&nbsp;Wuzi Dong","doi":"10.1016/j.aaf.2023.05.008","DOIUrl":"10.1016/j.aaf.2023.05.008","url":null,"abstract":"<div><div>Selenium nanoparticles (SeNPs) were often used as growth and antioxidant capacity promoter. In this study, we found selenium nanoparticles (SeNPs) could improve the survival rate of <em>Onychostoma macrolepis</em> (<em>O. macrolepis</em>) fry as a feed additive after a challenged by <em>Aeromonas hydrophila</em> (<em>A. hydrophila</em>). To further explore the mechanism of SeNPs against bacterial infection, we examined the changes before and after bacterial infection, and the results showed that large amounts of peroxide were produced under <em>A. hydrophila</em> infection in <em>O. macrolepis</em> fry, and then the excessive accumulation of peroxides led to a large amount of ferroptosis in the liver. Interestingly, we found supplementing 0.9 mg/kg biogenic SeNPs decreased MDA, iron content, and enhanced T-AOC levels in the liver of <em>O. macrolepis</em> fry after a challenged by <em>Aeromonas hydrophila</em> (P˂0.01). Especially, the diet with 0.9 mg/kg biogenic SeNPs could significantly increase the expression level of Glutathione peroxidase-4 (GPX4), nuclear factor erythroid2-related factor 2 (Nrf2), and Ferroportin 1 (FPN1) in the liver of <em>O. macrolepis</em> after infection with <em>A. hydrophila</em>. In summary, the results of this research suggested that the diet with 0.9 mg/kg biogenic SeNPs was an optimal additive dose to improve the survival rate of <em>O. macrolepis</em> fry by increasing antioxidant capacity and inhibiting ferroptosis, which sheds a new light on the mechanism of antibacterial infection in fish from the perspective of ferroptosis.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 1","pages":"Pages 39-48"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75975606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transcriptomic, histological and biochemical analyses of Macrobrachium nipponense response to acute heat stress","authors":"Xiao Wu ,&nbsp;Yaoran Fan ,&nbsp;Jianbin Feng ,&nbsp;Keyi Ma ,&nbsp;Jiale Li","doi":"10.1016/j.aaf.2023.05.007","DOIUrl":"10.1016/j.aaf.2023.05.007","url":null,"abstract":"<div><div>Temperature is an essential environmental factor affecting the viability of organisms. Temperature changes could cause damages or even death. The oriental river prawn, <em>Macrobrachium nipponense</em>, is widely distributed in East Asian countries, and has been an important economical aquaculture species in China since 1990s. This prawn belongs to crustaceans, which is a kind of ectotherms and very sensitive to temperature changes due to their relatively low internal metabolic heat production and their high thermal conductivity. In order to reveal the thermal adaptation mechanisms, <em>M. nipponense</em> were acclimated at 25 °C for 24 h, and successively challenged at 30 °C and 35 °C for 24 h in the same tank, respectively. And histological, biochemical and transcriptomic analyses were carried out on the gills and hepatopancreas under different temperatures. The results showed that different degrees of histological damages were discovered both in the gills and hepatopancreas of <em>M. nipponense</em> at 30 °C and 35 °C. The digestive, metabolic, and antioxidative capacity were enhanced in the gills and hepatopancreas of <em>M. nipponense</em> at 30 °C and 35 °C. A total of 2293 and 3304 differentially expressed genes (DEGs) were identified from the gills and hepatopancreas, respectively. These DEGs were significantly involved in the regulation of transcription, proteolysis, nucleus, cytoplasm, metal ion binding, and ATP binding by Gene ontology (GO) enrichment analysis. Furthermore, the DEGs in the hepatopancreas were significantly enriched in KEGG pathways including neuroactive ligand-receptor interaction, thyroid hormone synthesis, and ECM-receptor interaction. And the DEGs in the gills were enriched in KEGG pathways including cGMP-PKG signaling pathway, ribosome, and calcium signaling pathway. These results could be helpful for further understanding the molecular mechanisms underlying the thermal response of <em>M. nipponense</em>, and increasing knowledge of the regulation mechanisms of freshwater crustaceans in the context of global warming.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 1","pages":"Pages 27-38"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86096103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chrysene alters the expression pattern of HSP70 genes in mandarin fish","authors":"Yufei Liu ,&nbsp;Tiantian Chen ,&nbsp;Jinliang Zhao ,&nbsp;Xiaowu Chen","doi":"10.1016/j.aaf.2023.07.007","DOIUrl":"10.1016/j.aaf.2023.07.007","url":null,"abstract":"<div><div>The heat shock protein 70 (HSP70) in fish plays a crucial role in various physiological and environmental stresses. To reveal the mechanisms of the <em>HSP70</em> gene response to abiotic stress in mandarin fish (<em>Siniperca chuatsi</em>), we analyzed the HSP70 gene family in this species. There are 16 <em>HSP70</em> genes in mandarin fish, and their protein three-dimensional structures were constructed. The aliphatic index of the 16 mandarin fish HSP70sranges from 73.50 (HSPa4b) to 99.46 (HSPa13), and all are hydrophilic proteins, with seven of them being unstable proteins. After exposure to chrysene, six <em>HSP70</em> genes in the intestine, four in the liver, and four in the brain tissues exhibited significant expression changes. These findings reveal that chrysene exposure affects the physiological status of fish, and <em>HSP70</em> genes may play a role in the chrysene exposure tolerance of the intestine, brain and liver in mandarin fish.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 1","pages":"Pages 63-67"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88076478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Progress on ancient DNA investigation of Late Quaternary mammals in China.","authors":"Gui-Lian Sheng, Ming-Min Zheng, Bo Xiao, Jun-Xia Yuan","doi":"10.16288/j.yczz.24-193","DOIUrl":"https://doi.org/10.16288/j.yczz.24-193","url":null,"abstract":"<p><p>It has been more than 40 years since the beginning of exploring the genetic composition of ancient organisms from the perspective of ancient DNA. In the recent 20 years, with the development and application of high-throughput sequencing technology platforms and the improved efficiency of retrieving highly fragmented DNA molecules, ancient DNA research moved forward to a brand-new era of deep-time paleogenomics. It not only solved many controversial phylogenetic problems, enriched the migration and evolution details of various organisms including humans, but also launched exploration of the molecular responses to climate changes in terms of \"whole genomic-big data-multi-species\" level. Moreover, it expanded the sample age from no more than 100,000 years to the Early Pleistocene, ~2 million years ago. Recently, Chinese scientists have made many influential breakthroughs in evolution and migration integration of East Asian populations and thus filled an important gap in the evolutionary process of modern human. Compared to the situation in human paleogenomic studies, less attention has been paid to the study of ancient DNA from vertebrates remains. In this review, we introduce a series of advances in ancient DNA investigations of large mammals in Late Quaternary in China, summarize the research breakthroughs in revealing the systematic evolutionary relationship between ancient and extant groups, gene flow, and molecular responses of mammalian populations to climate change, and explore the opportunities and key challenges in the field of mammalian paleogenomics.</p>","PeriodicalId":35536,"journal":{"name":"遗传","volume":"47 1","pages":"46-57"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142956102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental changes and uplift of the Qinghai-Tibet Plateau drive genetic diversification and speciation of the birds.","authors":"Gang Song, Yan-Hua Qu","doi":"10.16288/j.yczz.24-166","DOIUrl":"https://doi.org/10.16288/j.yczz.24-166","url":null,"abstract":"<p><p>Being the most magnificent plateau in elevation and size on Earth, the Qinghai-Tibet Plateau has a profound impact on biodiversity due to the unique geographic and climatic conditions. Here we review the speciation patterns and genetic diversity of the birds from the Qinghai-Tibet Plateau in relation to the geological history and climatic changes. First, the uplift of the Qinghai-Tibet Plateau forms a geographic barrier and promotes interspecific and intraspecific genetic differentiation. Second, the uplift of the Qinghai-Tibet Plateau has provided new ecological niches for many endemic birds and facilitated their speciation. Third, the emigration and immigration of bird species between the Qinghai-Tibet Plateau and adjacent zoological regions have promoted species divergence, colonization and dispersal. Furthermore, Pleistocene glaciations and associated climate change drive postglacial colonization and lead to secondary contact, which influenced the genetic divergence of the conspecific populations and sister species. The multi-omics approach has increasingly been used in the studies on the ecological adaptive evolution of birds in Qinghai-Tibet Plateau. Future studies should focus on the role of geological and climatic factors in species differentiation, develop integrative approach with multi-omics methods, and explore the ecological mechanisms of high-elevation adaptation of plateau species. As an important region for biodiversity conservation, more efforts should be implemented to maintain the stability and sustainability of the Qinghai-Tibet Plateau and its ecosystem in light of global change.</p>","PeriodicalId":35536,"journal":{"name":"遗传","volume":"47 1","pages":"133-145"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142956101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The involvement of reactive oxygen species in wounding-induced archeospores production in Neopyropia yezoensis","authors":"Dahai Gao ,&nbsp;Chaofeng Teng ,&nbsp;Xinghong Yan","doi":"10.1016/j.aaf.2023.06.002","DOIUrl":"10.1016/j.aaf.2023.06.002","url":null,"abstract":"<div><div>The archeospores released from the blades of <em>Neopyropia yezoensis</em> via dedifferentiated vegetative cells have drawn attention both in cultivation and research. Wounding-induced archeospores formation and release have been observed in <em>N. yezoensis</em>, but the mechanism behind them is unclear. In this study, the involvement of reactive oxygen species (ROS) in the process of wounding-induced archeospores formation and release was investigated. Based on ROS fluorescence observations, the blade fragments began to accumulate ROS after 12 h wounding, while no ROS signals were observed in normal blades. Next, when the blade fragments were treated with ROS inhibitor diphenyleneiodonium (DPI), it showed that the production of archeopores was significantly suppressed. Under normal culturing after wounding, 78.3% of the fragments could release archeospores, and the ROS fluorescence was enriched in the released archeospores. Under 0.05 μM DPI treatment, the percentage of fragments releasing archeospores was dropped to 16.2%, with decreased ROS fluorescence levels. Under 0.1 μM DPI treatment, no archeospores were released from the fragments, and ROS fluorescence was also undetectable in the fragments. Our findings proved that ROS are essential for wounding-induced archeospores production, which might play regulatory roles in the cell dedifferentiation of <em>N. yezoensis</em>.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"10 1","pages":"Pages 89-93"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82577788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"plantGIR: a genomic database of plants.","authors":"Zhuo Liu, Chenhao Zhang, Jinghua He, Chunjin Li, Yanhong Fu, Yongfeng Zhou, Rui Cao, Haibin Liu, Xiaoming Song","doi":"10.1093/hr/uhae342","DOIUrl":"10.1093/hr/uhae342","url":null,"abstract":"","PeriodicalId":57479,"journal":{"name":"园艺研究(英文)","volume":"11 12","pages":"uhae342"},"PeriodicalIF":7.6,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11661351/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142878714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multiple ancestral components and complex origins of the Yugur people in Gansu province revealing by 35 Y-STR.","authors":"Xian-Peng Zhang, Hui-Xin Yu, Jie Zhang, Xin-Yi Jia, Xiao-Fei He, Bo-Feng Zhu, Lan-Hai Wei, Hong-Bing Yao","doi":"10.16288/j.yczz.24-136","DOIUrl":"10.16288/j.yczz.24-136","url":null,"abstract":"<p><p>The Yugur people represent one of the ethnic groups residing within the Hexi Corridor, distinguishable by their small population size, linguistic diversity, intricate ancestral components, serving as a quintessential exemplar of the populations inhabiting this corridor. There are still many controversial issues in the academic community regarding the origin, migration, and formation process of the Yugur. In this study, we explored the formation process of the Yugur from the perspective of molecular anthropology, based on the paternal genetic characteristics of the Yugur people. And the study will synthesize multiple disciplines, encompassing ethnology, history and linguistics, in order to offer a thorough analysis. Within this research endeavor, a high-resolution kit comprising 35 Y-STRs was employed to examine 237 male specimens from the Yugur people in Gansu province. Y-SNP haplogroups were deduced through the utilization of Y-STR data. The paternal genetic data from diverse populations documented in published literature were merged to construct a 16 Y-STR dataset, a 25 Y-STR dataset, and a dataset detailing haplogroup frequencies. In this study, we employed haplotype network analysis, principal component analysis, multidimensional scaling analysis, phylogenetic tree construction, and genetic distance calculations to delve into the genetic structure, haplotype distribution, and genetic relationship with neighboring populations of the Yugur people. The findings of this study reveal that the Yugur people are a blend of ancestral lineages from both Eastern and Western Eurasian origins, with approximately 13% of their genetic component traced back to Western Eurasian populations. The Yugur people in Gansu province exhibits a more intimate genetic relationship with the Han, Tibetan, and Mongolian populations inhabiting nearby regions, while showing distinct genetic differences with Turkic-speaking groups like the Uyghur. Based on the merged data, we identified Q1b1a3-L330 and R1a1a-M17 shared with Turkic-speaking people, C2a1a1-F1756, C2a1a3-M504, C2a1a3a-F3796, C2a1a2-M48 and C2b1a1a1a-M407 shared with Mongolic-speaking people, D1a1a-M15 and D1a1b1-P47 shared with Tibetans, and multiple paternal lineages shared with Han people, which are the main paternal lineages of Yugur people, indicating multiple ancestral components and complex origins of Yugur. In this study, we provided a clearer genetic landscape which further supports the formation process and population characteristics of the Yugur people recorded in history, ethnology, and linguistics, and lays the foundation for more detailed studies on population genetics and forensic genetics in the future.</p>","PeriodicalId":35536,"journal":{"name":"遗传","volume":"46 12","pages":"1042-1054"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142807979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}