Article
Microbiology
Sandra Hilario, Micael F. M. Goncalves, Artur Alves
Summary: DNA sequence analysis is crucial for species delimitation in Diaporthe, but combining multiple genes without genealogical concordance criteria complicates species delimitation. Using GCPSR and PTPs methods, the D. eres complex was identified as a single species, contrary to the current recognition of multiple species. Absence of reproductive isolation and low genetic diversity indices suggest D. eres constitutes a population rather than distinct lineages.
Article
Biochemistry & Molecular Biology
Isis C. Arantes, Mariana M. Vasconcellos, Megan L. Smith, Ryan C. Garrick, Guarino R. Colli, Brice P. Noonan
Summary: Understanding the drivers of biodiversity in a treefrog subgroup in the Neotropical savannas. This study identified nine recognized species in the subgroup and found genetic structure within one of the widespread species. The results also showed the importance of geological and climatic events in shaping the diversity at and below the species level in this subgroup.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2023)
Article
Biochemistry & Molecular Biology
Chao Li, Han Xiao, Xiuxia Zhang, Hungdu Lin, Kathryn R. Elmer, Jun Zhao
Summary: Identifying cryptic species is crucial for biodiversity assessment, and understanding the mechanisms behind their origins can enhance our knowledge of evolutionary processes. Recent advancements in genomics have provided unprecedented opportunities to study these areas. In this study, we used genome-wide RADseq data to test and quantify the genomic differences between six cryptic species within the White Cloud Mountain minnow (Tanichthys albonubes) complex. Our findings support the existence of these previously suggested cryptic species, and suggest a late stage of cryptic speciation with limited gene flow. This research provides new insights into cryptic speciation and has important implications for the conservation and management of the T. albonubes complex.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2023)
Article
Zoology
Valentin Moser, Hannes Baur, Arne W. Lehmann, Gerlind U. C. Lehmann
Summary: Integrative taxonomy is considered the gold standard in species recognition and delimitation, but faces limitations in the Tetrix bipunctata complex. The two morphs in the complex, bipunctata and kraussi, are mainly sympatrically distributed with a distinct difference in hind wing length. While the morphological difference has been confirmed, the taxonomic classification as species remains uncertain.
Article
Zoology
Scott J. Fitzgerald
Summary: Four new Neotropical species of Plecia Wiedemann are described in this study, along with a redesription of one species and the first description of its male. Based on discussions of different species-groups, three groups are outlined.
Article
Multidisciplinary Sciences
Tatiana A. Korshunova, Floor M. F. Driessen, Bernard E. Picton, Alexander Martynov
Summary: Species identification is essential for ecological, phylogeographic, and evolutionary studies, but conducting taxonomic studies in the molecular era can be challenging. This study focuses on common, difficult-to-distinguish European species within the genus Polycera to address the broader issues of cryptic species and their impact on biodiversity research. By analyzing a large dataset encompassing morphological and molecular data, the study identifies four species within a complex, highlighting the importance of accurate taxonomic analysis. The study reveals the presence of both cryptic and non-cryptic components within the same species, suggesting the need for a more comprehensive understanding of organismal diversity.
SCIENTIFIC REPORTS
(2021)
Article
Parasitology
Laura Posada-Lopez, Bruno Leite Rodrigues, Ivan Dario Velez, Sandra Uribe
Summary: This study assesses the usefulness of COI DNA barcoding for sand fly species identification, correct assignment of isomorphic females, and detection of cryptic diversity. By sequencing the COI gene of sand flies from different countries, cryptic diversity within species was detected, and isomorphic females were correctly associated with males identified by morphology. Nine sand fly species were DNA barcoded for the first time.
PARASITES & VECTORS
(2023)
Article
Plant Sciences
Xingxing Mao, Ji Wang, Nawal Shrestha, Yazhen Ma, Jianquan Liu
Summary: This study aimed to delimit species boundaries within the Rhododendron species complex, resulting in the identification of two distinct species and one putative hybrid group. The findings were based on morphological analyses and population genetic data, indicating a potential introgression event that formed the hybrid group. Further investigations are needed to validate the existence and characteristics of this hybrid group.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Nicolas Puillandre, Sophie Brouillet, Guillaume Achaz
Summary: ASAP is a fast and efficient method for constructing species partitions from single locus sequence alignments. It offers a new scoring system without prior biological insight, and can be used through a graphical web interface or downloaded for local usage.
MOLECULAR ECOLOGY RESOURCES
(2021)
Review
Ecology
Caren P. Shin, Warren D. Allmon
Summary: Methodological and biological considerations are intertwined when studying cryptic species. The frequency and definition of cryptic species in taxonomic groups are not well documented, causing ambiguity in interpreting their significance. Based on recent literature on shelled marine gastropods, this study reviews the definition and implications of cryptic species, concluding that most gastropod species are not cryptic.
ECOLOGY AND EVOLUTION
(2023)
Article
Biochemistry & Molecular Biology
Richard Cadenillas, Guillermo D'Elia
Summary: The genus Octodon contains five species, but genetic analysis suggests the diversity is underestimated, with different methods delimiting different numbers of candidate species. Some species show genetic and morphological differentiation, while others are considered cryptic species. Phylogenetic incongruence indicates processes like incomplete lineage sorting and introgression during the radiation of the genus.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2021)
Article
Plant Sciences
Zhiqiang Lu, Yongshuai Sun, Ying Li, Yongzhi Yang, Gaini Wang, Jianquan Liu
Summary: The study found that the four clusters identified should be treated as four independent species based on new evidence. One cluster was shown to have an admixed genetic composition derived from the other three through repeated historical hybridizations. This study highlights the importance of applying integrative and statistical methods to infer species delimitations and hybridization history, which should be widely adopted for future taxonomic studies.
Article
Zoology
Pritam K. Dey, Piotr Gasiorek, Lukasz Michalczyk
Summary: A new lineage of tardigrades has been discovered in the subtropical and tropical rainforests of India and Tanzania, consisting of three species with caramel/brown body coloration. These species may be mistaken for other species with green or black body coloration, but further examination and molecular phylogenetic analyses reveal that they belong to the Echiniscus spinulosus morphogroup. This convergence of dark cuticular coloration in different tardigrade lineages highlights the importance of DNA barcoding in accurately estimating species richness.
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2023)
Article
Plant Sciences
Bohan Jiao, Chen Chen, Meng Wei, Guohao Niu, Jiye Zheng, Guojin Zhang, Jiahao Shen, Daniel Vitales, Joan Valles, Filip Verloove, Andrey S. Erst, Akiko Soejima, Iraj Mehregan, Goro Kokubugata, Gyu-Young Chung, Xuejun Ge, Lianming Gao, Yuan Yuan, Cyprien Joly, Florian Jabbour, Wei Wang, Leila M. Shultz, Tiangang Gao
Summary: A well-resolved phylogeny for global Artemisia was reconstructed using a phylogenomic approach, revealing the complex evolutionary history of its key morphological characters. The circumscription and infrageneric taxonomy of Artemisia were updated based on the new results.
Article
Ecology
Marie Pollmann, Denise Kuhn, Christian Koenig, Irmela Homolka, Sina Paschke, Ronja Reinisch, Anna Schmidt, Noa Schwabe, Justus Weber, Yuval Gottlieb, Johannes Luitpold Maria Steidle
Summary: The parasitic wasp Lariophagus distinguendus has been found to consist of two separate species, challenging the practice of using 2% COI differences to define species in parasitic wasps. Genetic distance correlates with the strength of reproductive isolation between strains, with postzygotic barriers affecting hybrid males and females in different ways. The study highlights the cryptic diversity and the emergence of reproductive barriers during the speciation process in L. distinguendus.
ECOLOGY AND EVOLUTION
(2023)
Article
Ecology
Bruno Serra de Lacerda Valverde, Heidi Samantha Moraes Utsunomiya, Cleoni dos Santos Carvalho, Lilian Franco-Belussi, Classius de Oliveira
Summary: Studies on anurans have been conducted for over 40 years to evaluate the adverse effects of benzo(alpha)pyrene (B alpha P), showing genotoxic, hepatotoxic, and immunotoxic effects. This study aimed to assess whether the route of administration of B alpha P influences its effects on hepatic biomarkers, with morphological biomarkers being more significantly affected than biochemical ones. The exposure pathway and time both modulate the effects of B alpha P on hepatic biomarkers in anurans.
Article
Environmental Sciences
Heidi Samantha Moraes Utsunomiya, Joao Victor Cassiel Ferraz, Gabriel Hiroshi Fujiwara, Davi Marques Gutierres, Isabela Ferreira Fernandes, Bruno Serra de Lacerda Valverde, Classius de Oliveira, Lilian Franco-Belussi, Marisa Narciso Fernandes, Cleoni dos Santos Carvalho
Summary: This study evaluated the effects of exposure to water from different sites of the Sorocaba River on genetic damage, oxidative stress, neurotoxicity, and energy metabolism in bullfrog tadpoles. The results indicated that exposure to water from different sites caused changes in various indicators, which may have effects on the development of tadpoles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Biochemistry & Molecular Biology
Natalia Lima Lira, Sandro Tonello, Roberto Laridondo Lui, Josiane Baccarin Traldi, Heleno Brandao, Claudio Oliveira, Daniel Rodrigues Blanco
Summary: Studies on fish eggs and larvae have been conducted since the late 19th century and have provided important information for understanding fish fauna and environmental inventory. The use of molecular identification techniques, particularly DNA barcoding, has greatly improved taxonomic precision in studying ichthyoplankton. Recent research shows a significant increase in the use of DNA barcoding, with high accuracy compared to traditional taxonomic identification methods.
MOLECULAR BIOLOGY REPORTS
(2023)
Article
Veterinary Sciences
Lorena Elizabeth Chalco-Torres, Ana Elizabeth Guerrero-Lopez, Robert Gustavo Sanchez-Prado, Jhonny Edgar Perez, Claudio Oliveira, Juan Antonio Gomez, Fernando Lenin-Aguilar, Mauro Nirchio-Tursellino
Summary: The bond between dogs and humans is a complex and multidimensional phenomenon that poses a public health problem. A study conducted in Apizaco, Tlaxcala, Mexico found that there is a problem with handling dog excreta, which can lead to zoonosis. Dogs without guardians were more likely to be parasitized by Toxocara canis and Ancylostoma caninum, while dogs with guardians and access to public roads were more likely to be infected with T. canis and A. caninum. It highlights the need for a comprehensive public health program promoting responsible dog ownership.
REVISTA CIENTIFICA-FACULTAD DE CIENCIAS VETERINARIAS
(2023)
Article
Genetics & Heredity
Mauro Nirchio, Claudio Oliveira, Marcelo de Bello Cioffi, Franciscode Menezes Cavalcante Sassi, Jonathan Valdiviezo, Fabilene Gomes Paim, Leticia Batista Soares, Anna Rita Rossi
Summary: This study provides the first cytogenetic description of the bristlenose catfish, Ancistrus clementinae Rendahl, 1937, a species endemic to Ecuador. The study confirms the presence of a male ZZ/female ZW(1)W(2) sex chromosome system in Ancistrus, with both W1W2 chromosomes enriched with heterochromatic blocks and 18S rDNA, in addition to GC-rich repeats (W-2).
Article
Zoology
George M. T. Mattox, Ralf Britz, Camila S. Souza, Andre L. S. Casas, Flavio C. T. Lima, Claudio Oliveira
Summary: Two new species of the genus Priocharax are described from the Rio Jurua system in Brazil, bringing the total known species diversity to seven. These species can be distinguished from each other and from their congeners by a combination of morphological and genetic characteristics. Unfortunately, the localities where these species were found are facing significant degradation, posing a threat to their conservation status.
CANADIAN JOURNAL OF ZOOLOGY
(2023)
Article
Fisheries
Jefferson L. Crispim-Rodrigues, Maxwell J. Bernt, Brandon T. Waltz, Gabriel S. C. Silva, Ricardo C. Benine, Claudio Oliveira, Raphael Covain, Fabio F. Roxo
Summary: During a recent collection expedition in the Rio Negro, Brazil, eight individuals of an unknown species were discovered, which were classified as a new species in the genus Rhadinoloricaria based on their combination of characteristics, including elongated papillae on the lower lip and unbranched barbelets on the margin of the lower lip. Morphological and phylogenetic analyses, along with osteological computed tomography scans, confirmed that these specimens represent a new species of Rhadinoloricaria.
JOURNAL OF FISH BIOLOGY
(2023)
Article
Veterinary Sciences
Lorena Elizabeth Chalco-Torres, Ana Elizabeth Guerrero-Lopez, Robert Gustavo Sanchez-Prado, Jhonny Edgar Perez, Claudio Oliveira, Juan Antonio Gomez, Fernando Lenin-Aguilar, Mauro Nirchio-Tursellino
Summary: This study presented a case of a dog infected with Parvovirus and Ehrlichia canis, confirmed by immunochromatography tests and PCR. The detection of E. ewingii suggests its presence outside its natural distribution range and raises the possibility of colonization in local vectors. Molecular studies on local ticks are needed to investigate if this is an isolated case or if there is local transmission of E. ewingii.
REVISTA CIENTIFICA-FACULTAD DE CIENCIAS VETERINARIAS
(2023)
Article
Zoology
Camila S. Souza, George M. T. Mattox, George Vita, Luz E. Ochoa, Bruno F. Melo, Claudio Oliveira
Summary: Phenacogaster is a genus in South America that has the highest species richness in the subfamily Characinae. This study describes a previously undescribed species within the genus, based on molecular phylogeny and genetic diversity analyses of 73 specimens. The new species is found in various river basins and can be distinguished by specific morphological traits.
Article
Zoology
Henrique R. Varella, Sven O. Kullander, Naercio A. Menezes, Claudio Oliveira, Hernan Lopez-Fernandez
Summary: This study proposes a new classification for pike cichlids, elevating the clade to the rank of subtribe (Crenicichlina) and redefining the genus Crenicichla. Teleocichla is maintained as a valid genus, while four new genera are proposed. The results also suggest that resource partitioning in environments with fast-flowing water and rocky beds may have played a role in the evolution of pike cichlids.
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2023)
Article
Biodiversity Conservation
Vanessa P. P. Cruz, Matheus M. M. Rotundo, Patricia Charvet, Beatriz R. R. Boza, Bruno C. C. Souza, Najila N. C. D. Cerqueira, Claudio Oliveira, Rosangela Lessa, Fausto Foresti
Summary: Anthropogenic activities, such as overexploitation and habitat degradation, have caused significant population declines in marine species, particularly rays and sharks. This study focused on the genetic diversity of chola guitarfish (Pseudobatos percellens) along the Brazilian coast using single nucleotide polymorphisms (SNPs). Genetic analyses revealed hidden biodiversity within P. percellens, with distinct lineages occurring in different regions of Brazil. Management efforts should be tailored to these separate populations to ensure the conservation of chola guitarfish biodiversity. Additionally, further taxonomic research is needed for this group.
Article
Genetics & Heredity
Mauro Nirchio Tursellino, Marcelo de Bello Cioffi, Francisco de Menezes Cavalcante Sassi, Geize Aparecida Deon, Claudio Oliveira, Mariana Kuranaka, Jonathan Valdiviezo-Rivera, Victor Hugo Gonzalez, Anna Rita Rossi
Summary: In this study, cytogenetic investigation on the Transancistrus santarosensis fish reveals a karyotype of 2n = 54 chromosomes, indicating an early stage of differentiation of the ZZ/ZW sex chromosome system. The fish has also accumulated heterochromatin and shows non-syntenic ribosomal genes localization, characteristics considered derived in the family.
Article
Fisheries
Aisni M. C. L. Adachi, Pollyana C. G. Roque, Fabio H. V. Hazin, Marcelo Vianna, Matheus M. Rotundo, Claudio Oliveira, Fausto Foresti, Vanessa P. Cruz
Summary: The study revealed the genetic variability and population structure of S. albicaudus, indicating a panmictic population in the study area. This result highlights the need for specific management and conservation plans at the regional scale.
Article
Zoology
George M. T. Mattox, Mauricio Cetra, Camila S. Souza, Osvaldo T. Oyakawa, Rodrigo M. M. Bento, Claudio Oliveira
Summary: Spintherobolus papilliferus is an endangered characid endemic to the Atlantic Rainforest. It has been found in the upper rio Tiete basin around Sao Paulo city and a coastal stream in Bertioga, Sao Paulo State. A new distributional record of S. papilliferus was discovered in the rio Ribeira de Iguape basin in Juquitiba, Sao Paulo State. Morphometric analysis revealed a significant difference in body shape and other features between this population and the other two populations. DNA-barcoding confirmed that the rio Ribeira de Iguape population belongs to S. papilliferus.
NEOTROPICAL ICHTHYOLOGY
(2023)
Article
Multidisciplinary Sciences
Rodrigo Zieri, Lilian Franco-Belussi, Classius De Oliveira
Summary: In this study, the researchers investigated the short-term effects of alpha-MSH on melanophores, melanocytes, and melanomacrophages in the South American frog Physalaemus nattereri. They found that these melanin-containing cells increased their pigmentation after receiving the hormone, but the response varied among different organs.
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
(2023)