Conservation Genetics最新文献_第8页

Genomic analysis of geographical structure and diversity in the capercaillie (Tetrao urogallus) 毛猴属(Tetrao urogallus)地理结构和多样性的基因组分析

3区环境科学与生态学

Conservation Genetics Pub Date : 2023-09-20 DOI: 10.1007/s10592-023-01567-6

Lídia Escoda, Josep Piqué, Ladislav Paule, Kévin Foulché, Emmanuel Menoni, Jose Castresana

{"title":"Genomic analysis of geographical structure and diversity in the capercaillie (Tetrao urogallus)","authors":"Lídia Escoda, Josep Piqué, Ladislav Paule, Kévin Foulché, Emmanuel Menoni, Jose Castresana","doi":"10.1007/s10592-023-01567-6","DOIUrl":"https://doi.org/10.1007/s10592-023-01567-6","url":null,"abstract":"Abstract The capercaillie is widespread throughout the boreal forests of northern Eurasia, but faces serious conservation challenges in the southernmost mountain ranges, where the populations are fragmented and some are critically endangered. To develop effective conservation strategies for these populations, it is essential to have information on both their genetic diversity and the genetic structure of the species. In this work, we used a reduced representation (ddRAD) genomic sequencing technique to analyze the genetic structure of the capercaillie across its European range and to assess the inbreeding levels in some of the most threatened populations. Our population structure analysis suggested the existence of two evolutionarily significant units, one formed by the two populations from the Iberian Peninsula and the other by the populations from the rest of Europe. Genetic diversity showed a significant decrease in the Iberian populations with respect to the other European populations. An isolation-with-migration model supported these results and allowed us to estimate the parameters of the population tree. The inbreeding coefficients estimated for the Iberian capercaillies showed relatively low levels in the Pyrenees. However, some individuals with very high inbreeding values were detected in the Cantabrian Mountains, suggesting that some of its subpopulations are substantially isolated. The population structure results and the genomic monitoring method we used to assess inbreeding levels may be crucial for the conservation and recovery of the most endangered capercaillie populations.","PeriodicalId":55212,"journal":{"name":"Conservation Genetics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136263208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Asymmetrical gene flow between coastal and inland dunes in a threatened digger wasp 一种受威胁的挖蜂在沿海和内陆沙丘间的不对称基因流动

3区环境科学与生态学

Conservation Genetics Pub Date : 2023-09-16 DOI: 10.1007/s10592-023-01566-7

Femke Batsleer, Matthieu Gallin, Moyra Delafonteyne, Daan Dekeukeleire, Filiep T’Jollyn, Pieter Vantieghem, An Vanden Broeck, Joachim Mergeay, Dirk Maes, Dries Bonte

引用次数: 1

In situ conservation of Helosciadium nodiflorum: a crop wild relative of celery in Germany 德国芹菜的一种作物野生近缘种——野花莲的原位保护

3区环境科学与生态学

Conservation Genetics Pub Date : 2023-09-16 DOI: 10.1007/s10592-023-01554-x

Inga Mewis, Nadine Bernhardt, Maria Bönisch, Jonathan Brassac, Annette Naumann, Matthias Zander, Uta Schirmak, Marion Nachtigall, Christian Ulrichs

{"title":"In situ conservation of Helosciadium nodiflorum: a crop wild relative of celery in Germany","authors":"Inga Mewis, Nadine Bernhardt, Maria Bönisch, Jonathan Brassac, Annette Naumann, Matthias Zander, Uta Schirmak, Marion Nachtigall, Christian Ulrichs","doi":"10.1007/s10592-023-01554-x","DOIUrl":"https://doi.org/10.1007/s10592-023-01554-x","url":null,"abstract":"Abstract Crop wild relatives (CWR) represent valuable sources of traits that can enhance the abiotic and biotic stress tolerance of crops. Due to climate change and expansion of land use, they may suffer from population decline, which increases the risk of losing these resources. The in situ conservation of CWR is receiving growing attention to preserve their intraspecific diversity. In contrast to the safeguarding of seeds ex situ, the preservation of taxa in their natural habitat facilitates the development of new adaptations to changing environmental conditions. However, studies aiming at the establishment of their in situ conservation are rare. Therefore, we identified and genotyped Helosciadium nodiflorum occurrences in Germany. Helosciadium nodiflorum is an endangered CWR of cultivated celery ( Apium graveolens ). For 20 occurrences the number of individuals, the number of sexually reproducing individuals, and potential threats were recorded. Genetic differences were examined using 17 newly developed simple sequence repeats (SSR). Population genetic analyses, like the inference of the compositional genetic differentiation, of population structure, and a Discriminant Analysis of Principal Components were conducted. The analyses revealed that most occurrences were genetically distinct. Geographically closely located populations are often also genetically more similar. Several populations revealed a composite genome indicative of hybridizations between distinct populations. Populations that experienced fixation were also identified. Based on the genetic diversity, the location in different ecogeographic units, and the support of local stakeholders, we recommend the establishment of 15 genetic reserves for H. nodiflorum in Germany.","PeriodicalId":55212,"journal":{"name":"Conservation Genetics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135306073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic diversity within late-summer run and half-pounder steelhead (Oncorhynchus mykiss) in the Rogue River, Oregon 俄勒冈州罗格河夏末鳙鱼和半磅钢头鱼的遗传多样性

3区环境科学与生态学

Conservation Genetics Pub Date : 2023-09-16 DOI: 10.1007/s10592-023-01563-w

David I. Dayan, Steve Mazur, Laura J. Green, Andrew J. Wells, Marc A. Johnson, Daniel J. Van Dyke, Peter A. Samarin, Ryan D. Battleson, Kathleen G. O’Malley

引用次数: 0

Do river basins shape genetic structure in the Kempholey night frog, India? 河流流域是否塑造了印度Kempholey夜蛙的遗传结构?

IF 2.2 3区环境科学与生态学

Conservation Genetics Pub Date : 2023-09-07 DOI: 10.1007/s10592-023-01550-1

H. Priti, Anand Anisha, Thunga Pavankumar, K. V. Gururaja, N. A. Aravind, Gudasalamani Ravikanth

引用次数: 0

Inconsistent estimates of hybridization frequency in newts revealed by SNPs and microsatellites 单核苷酸多态性和微卫星显示的蝾螈杂交频率估计不一致

3区环境科学与生态学

Conservation Genetics Pub Date : 2023-09-07 DOI: 10.1007/s10592-023-01556-9

Aurélien Miralles, Jean Secondi, Maciej Pabijan, Wiesław Babik, Christophe Lemaire, Pierre-André Crochet

{"title":"Inconsistent estimates of hybridization frequency in newts revealed by SNPs and microsatellites","authors":"Aurélien Miralles, Jean Secondi, Maciej Pabijan, Wiesław Babik, Christophe Lemaire, Pierre-André Crochet","doi":"10.1007/s10592-023-01556-9","DOIUrl":"https://doi.org/10.1007/s10592-023-01556-9","url":null,"abstract":"Abstract Hybridization between the European smooth and palmate newts has recurrently been mentioned in the literature. The only two studies that attempted to quantify the frequency of hybridization and gene admixture between these two species came to strikingly opposite conclusions. According to Arntzen et al. (1998, 42 allozymes), hybrids are rare in nature and introgression negligible, while according to Johanet et al. (2011, 6 microsatellites), introgressive hybridization is significant and widespread across the shared distribution range. To clarify this question, we implemented high-throughput SNP genotyping with diagnostic biallelic SNPs on 965 specimens sampled across Europe. Our results are in line with Arntzen et al., since only two F1 hybrids were identified in two distinct French localities, and no further hybrid generations or backcrosses. Moreover, reanalysis of 78 of the samples previously studied by Johanet et al. (2011) using our SNPs panel could not reproduce their results, suggesting that microsatellite-based inference overestimated the hybridization frequency between these two species. Since we did not detect methodological issues with the analyses of Johanet et al., our results suggest that SNP approaches outperform microsatellite-based assessments of hybridization frequency, and that conclusions previously published on this topic with a small number of microsatellite loci should be taken with caution, and ideally be repeated with an increased genomic coverage.","PeriodicalId":55212,"journal":{"name":"Conservation Genetics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134997766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sibship analysis revealed the reproductive strategy and current population status of the silver carp (Hypophthalmichthys molitrix) from the middle and lower reaches of the Yangtze River, China 亲缘关系分析揭示了长江中下游鲢鱼的繁殖策略和种群现状

IF 2.2 3区环境科学与生态学

Conservation Genetics Pub Date : 2023-09-05 DOI: 10.1007/s10592-023-01565-8

Ping Yang, Cheng Chen, Dan Yu, Minzheng Li, Huanzhang Liu

引用次数: 0

Genomic data reveal shift in geographic source of an illegally traded songbird 基因组数据揭示了一种非法交易鸣禽的地理来源的变化

IF 2.2 3区环境科学与生态学

Conservation Genetics Pub Date : 2023-09-05 DOI: 10.1007/s10592-023-01564-9

M. Wu, Han Wei Chong, Yen Yi Tan, Bryan T. M. Lim, Anna M.S. Wong, Rachel Rui Ying Oh, Jessica G.H. Lee, Elize Y. X. Ng, F. Rheindt

引用次数: 0

Conservation implications for the world’s most widely distributed cavefish species complex based on population genomics (Typhlichthys, Percopsiformes) 基于种群基因组学的世界上分布最广泛的洞穴鱼物种复合体的保护意义(斑疹鱼，过孔鱼)