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Dettner K, Kovács Z, Rewicz T, Csabai Z. Age-dependent variation of aedeagal morphology in Agabusuliginosus and the status of A.lotti (Coleoptera, Dytiscidae). Zookeys 2024; 1212:153-177. [PMID: 39318675 PMCID: PMC11420541 DOI: 10.3897/zookeys.1212.130039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Accepted: 07/22/2024] [Indexed: 09/26/2024] Open
Abstract
A doubt has arisen about the taxonomic status of Agabuslotti within the Agabusuliginosus species group due to morphological similarities and lack of molecular data. In this study, a comprehensive morphological and molecular analysis of specimens from Central Europe was conducted, focusing on the Hungarian population. Morphological comparisons of genital structures revealed age-dependent variations, suggesting a gradual transition from A.lotti to A.uliginosus. Molecular analysis of COI sequences further supported this hypothesis, showing minimal genetic differences among most specimens, with only one individual exhibiting distinctiveness. Therefore, A.lotti syn. nov. must be regarded as a junior synonym of A.uliginosus. Our findings also highlight the need for additional multi-marker studies covering a broader geographic range and including both molecular and morphological approaches to elucidate the taxonomic and phylogenetic relationships within this species group. The inclusion of Hungarian samples notably enriched the diversity of haplotypes, emphasizing the importance of expanding sampling efforts in future research.
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Affiliation(s)
- Konrad Dettner
- Universität Bayreuth, Chair of Evolutionary Animal Ecology, D-95440 Bayreuth, Hohereuth 17b, D-95448 Bayreuth, GermanyUniversität BayreuthBayreuthGermany
| | - Zsolt Kovács
- University of Pécs, Department of Hydrobiology, Ifjúság útja 6, H-7624 Pécs, HungaryUniversity of PécsPécsHungary
| | - Tomasz Rewicz
- University of Lodz, Department of Invertebrate Zoology and Hydrobiology, Banacha 12/16, 90-237 Łódź, PolandUniversity of LodzŁódźPoland
| | - Zoltán Csabai
- University of Pécs, Department of Hydrobiology, Ifjúság útja 6, H-7624 Pécs, HungaryUniversity of PécsPécsHungary
- HUN-REN Balaton Limnological Research Institute, Klebelsberg Kuno 3, H-8237, Tihany, HungaryHUN-REN Balaton Limnological Research InstituteTihanyHungary
- HUN-REN Centre for Ecological Research, Institute of Aquatic Ecology, Bem square 18/C, H-4026, Debrecen, HungaryHUN-REN Centre for Ecological Research, Institute of Aquatic EcologyDebrecenHungary
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Fueyo Á, Sánchez O, Carleos C, Escudero A, Cordón J, Granero‐Castro J, Borrell YJ. Unlocking rivers' hidden diversity and ecological status using DNA metabarcoding in Northwest Spain. Ecol Evol 2024; 14:e70110. [PMID: 39100209 PMCID: PMC11294579 DOI: 10.1002/ece3.70110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 07/05/2024] [Accepted: 07/18/2024] [Indexed: 08/06/2024] Open
Abstract
Rivers are crucial ecosystems supporting biodiversity and human well-being, yet they face increasing degradation globally. Traditional river biomonitoring methods based on morphological identification of macroinvertebrates present challenges in terms of taxonomic resolution and scalability. This study explores the application of DNA metabarcoding analysis in both bulk and environmental DNA (eDNA) samples for comprehensive assessment of macrozoobenthic biodiversity, detection of invasive and endangered species, and evaluation of river ecological status in northwestern Spain. DNA metabarcoding of homogenized bulk samples and water eDNA revealed a mean of 100 and 87 macrozoobenthos species per sample respectively. However, the specific composition was significantly different with only 27.3% of the total species being shared. It was not possible to identify all the OTUs to species level; only 17.43% and 49.4% of the OTUs generated could be identified to species level in the bulk and eDNA samples, respectively. Additionally, a total of 11 exotic species (two first records for the Iberian Peninsula and another three first records for Asturias region) and one endangered species were detected by molecular tools. Molecular methods showed significant correlations with morphological identification for EQR values (Ecological Quality Ratio) of IBMWP index, yet differences in inferred river ecological status were noted, with bulk samples tending to indicate higher status. Overall, DNA metabarcoding offers a promising approach for river biomonitoring, providing insights into biodiversity, invasive species, and ecological status within a single analysis. Further optimization and intercalibration are required for its implementation in routine biomonitoring programmes, but its scalability and multi-tasking capabilities position it as a valuable tool for integrated monitoring of river ecosystems.
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Affiliation(s)
- Álvaro Fueyo
- Environment and Sustainability Area, Taxus Medio AmbienteOviedoSpain
- Department of Functional Biology, GeneticsUniversity of OviedoOviedoSpain
| | - Omar Sánchez
- Environment and Sustainability Area, Taxus Medio AmbienteOviedoSpain
- Department of Organisms and Systems Biology, ZoologyUniversity of OviedoOviedoSpain
| | - Carlos Carleos
- Department of Statistics and Operations Research and Mathematics DidacticsUniversity of OviedoOviedoSpain
| | - Amando Escudero
- Environment and Sustainability Area, Taxus Medio AmbienteOviedoSpain
| | - Javier Cordón
- Environment and Sustainability Area, Taxus Medio AmbienteOviedoSpain
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Macko P, Derka T, Čiamporová-Zaťovičová Z, Grabowski M, Čiampor F. Detailed DNA barcoding of mayflies in a small European country proved how far we are from having comprehensive barcode reference libraries. Mol Ecol Resour 2024; 24:e13954. [PMID: 38520175 DOI: 10.1111/1755-0998.13954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 02/28/2024] [Accepted: 03/07/2024] [Indexed: 03/25/2024]
Abstract
Mayflies (Ephemeroptera) are among the crucial water and habitat quality bioindicators. However, despite their intensive long-term use in various studies, more reliable mayfly DNA barcode data have been produced in a negligible number of countries, and only ~40% of European species had been barcoded with less than 50% of families covered. Despite being carried out in a small area, our study presents the second-most species-rich DNA reference library of mayflies from Europe and the first comprehensive view from an important biodiversity hotspot such as the Western Carpathians. Within 1153 sequences, 76 morphologically determined species were recorded and added to the Barcode of Life Data System (BOLD) database. All obtained sequences were assigned to 97 BINs, 11 of which were unique and three represented species never barcoded before. Sequences of 16 species with high intraspecific variability were divided into 40 BINs, confirming the presence of cryptic lineages. Due to the low interspecific divergence and the non-existing barcoding gap, sequences of six species were assigned to three shared BINs. Delimitation analyses resulted in 79 and 107 putative species respectively. Bayesian and maximum-likelihood phylogenies confirmed the monophyly of almost all species and complexes of cryptic taxa and proved that DNA barcoding distinguishes almost all studied mayfly species. We have shown that it is still sufficient to thoroughly investigate the fauna of a small but geographically important area to enrich global databases greatly. In particular, the insights gained here transcend the local context and may have broader implications for advancing barcoding efforts.
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Affiliation(s)
- Patrik Macko
- Department of Ecology, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovak Republic
| | - Tomáš Derka
- Department of Ecology, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovak Republic
| | - Zuzana Čiamporová-Zaťovičová
- Department of Ecology, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovak Republic
- ZooLab, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Michal Grabowski
- Department of Invertebrate Zoology and Hydrobiology, Faculty of Biology and Environmental Protection, University of Łódź, Łódź, Poland
| | - Fedor Čiampor
- ZooLab, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Bratislava, Slovak Republic
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Arana A, Arana C, Watsa M, Tobler MW, Pacheco V, Esteves J, Mena JL, Salinas L, Ramirez JL. Lack of local genetic representation in one of the regions with the highest bird species richness, the Peruvian Amazonia. PLoS One 2024; 19:e0296305. [PMID: 38165899 PMCID: PMC10760656 DOI: 10.1371/journal.pone.0296305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 12/08/2023] [Indexed: 01/04/2024] Open
Abstract
Peru ranks among the three countries with the highest bird species diversity globally and a majority of those species are found in the Peruvian Amazon. However, birds in this area are currently facing serious anthropogenic threats. Genetic and genomic methods are becoming important tools for avian biodiversity monitoring and conservation planning. Comprehensive molecular libraries that are publicly available are key to the effective deployment of these tools. We analyze the information gaps for four molecular markers in the most important genetic sequence databases, Barcode of Life Data Systems (BOLD) and NCBI GenBank, for bird species of the Peruvian Amazonia. We found that 64% of Peruvian Amazonian bird species have gene sequences for COI, 59.5% have CYTB sequences, 16.4% have 12S sequences, and only 0.6% have 18S sequences. However, these numbers decrease drastically to 4.3% for COI sequences when we only consider specimens sampled in Peru. Our data also showed that 43.8% of Peruvian Amazonian endemic species (n = 32) are missing sequences of any screened marker uploaded to GenBank or BOLD. Our results will encourage and guide efforts of the scientific community to complete reference libraries for Peruvian avian species that will be useful for future DNA-based monitoring projects that include birds.
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Affiliation(s)
- Alejandra Arana
- Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Lima, Peru
- Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - César Arana
- Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Lima, Peru
- Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Mrinalini Watsa
- San Diego Zoo Wildlife Alliance, Conservation Science and Wildlife Health, Escondido, California, United States of America
| | - Mathias W. Tobler
- San Diego Zoo Wildlife Alliance, Conservation Science and Wildlife Health, Escondido, California, United States of America
| | - Víctor Pacheco
- Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Lima, Peru
- Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Juan Esteves
- Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Lima, Peru
- Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | | | - Letty Salinas
- Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Lima, Peru
- Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Jorge L. Ramirez
- Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Lima, Peru
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