Search Results - "speciation"

A chromosome-level reference genome of Ensete glaucum gives insight into diversity and chromosomal and repetitive sequence evolution in the Musaceae by Wang, Ziwei, Rouard, Mathieu, Biswas, Manosh, Droc, Gaetan, Cui, Dongli, Roux, Nicolas Stephan M., Baurens, Franc-Christophe, Ge, Xue-Jun, Schwarzacher, Trude, Heslop-Harrison, J.S., Liu, Qing

“…The chromosome-scale genome assembly shows the nature of chromosomal fusion and translocation events during speciation, and features of rapid repetitive DNA change in terms of copy number, sequence, and genomic location, critical to understanding its role in diversity and evolution.…”
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Differential infection patterns and recent evolutionary origins of equine hepaciviruses in donkeys by Walter, S., Rasche, A., Moreira-Soto, A., Pfaender, S., Bletsa, M., Corman, V.M., Aguilar-Setien, A., García Lacy, F., Hans, A., Todt, D., Schuler, G., Shnaiderman-Torban, A., Steinman, A., Roncoroni, C., Venezian, V., Rusenova, N., Sandev, N., Rusenov, A., Zapryanova, D., García Bocanegra, I., Jores, Joerg, Carluccio, A., Veronesi, M.C., Cavalleri, J.M.V., Drosten, C., Lemey, P., Steinmann, E., Drexler, J.F.

“…Donkey and horse EqHV strains were paraphyletic and 97.5-98.2% identical in their translated polyprotein sequences, making virus/host co-speciation unlikely. Evolutionary reconstructions supported host switches of EqHV between horses and donkeys without the involvement of adaptive evolution. …”
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Phylogenetic relationships and intraspecific diversity of a North Patagonian Fescue: evidence of differentiation and interspecific introgression at peripheral populations by Lopez, Aldana, Azpilicueta, Maria Marta, Lopez, Dardo Ruben, Siffredi, Guillermo Lorenzo, Marchelli, Paula

“…The high genetic variability observed in these peripheral populations highlight their relevance for conservation and might be indicating the existence of evolutionary processes triggering events of speciation in the Patagonian fescues.…”
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Chromosome studies in southern species of Mimosa (Fabaceae, Mimosoideae) and their taxonomic and evolutionary inferences by Morales, Matias, Wulff, Arturo Federico, Fortunato, Renee Hersilia, Poggio, Lidia

“…As already shown in the literature, our results confirm the importance of the polyploidy in the speciation of the genus.…”
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Molecular epidemiology of Brucella species in mixed livestock-human ecosystems in Kenya by Akoko, James M., Pelle, Roger, Lukambagire, A.S., Machuka, Eunice M., Nthiwa, D., Mathew, C., Fèvre, Eric M., Bett, Bernard K., Cook, Elizabeth A.J., Othero, D., Bonfoh, Bassirou, Kazwala, R.R., Shirima, G., Schelling, E., Halliday, J.E.B., Ouma, C.

“…All genus positive samples (positive for both targets) were further tested with a speciation assay for AlkB and BMEI1162 targets, specific for B. abortus and B. melitensis, respectively. …”
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Contributions of adaptive plant architecture to transgressive salinity tolerance in recombinant inbred lines of rice: Molecular mechanisms based on transcriptional networks by Pabuayon, Isaiah Catalino M., Kitazumi, Ai, Gregorio, Glenn B., Singh, Rakesh Kumar, de los Reyes, Benildo G.

“…Genetic novelties are important nucleators of adaptive speciation. Transgressive segregation is a major mechanism that creates genetic novelties with morphological and developmental attributes that confer adaptive advantages in certain environments. …”
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Short‐term hybridisation activates Tnt1 and Tto1 Copia retrotransposons in wild tuber‐bearing Solanum species by Paz, Rosalia Cristina, Rendina González, Alejandra Pilar, Ferrer, M.S., Masuelli, Ricardo Williams

“…Interspecific hybridisation in tuber‐bearing species of Solanum is a common phenomenon and represents an important source of variability, crucial for adaptation and speciation of potato species. In this regard, the effects of interspecific hybridisation on retrotransposon families present in the genomes, and their consequent effects on generation of genetic variability in wild tuber‐bearing Solanum species, are poorly characterised. …”
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A biosystematic analysis of Solanum acaule by Kardolus, J.P.

“…This study focuses on the hybrid speciation of series Acaulia . Solanum acaule shows morphological similarities with species of series Megristacroloba and Tuberosa , which have been hypothesized as possible ancestors. …”
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Identifying areas and centers of endemism in the Gran Chaco with Fabaceae as a diversity indicator by Morales, Matias, Bagnatori Sartori, Angela Lucia, Prado, Darién Eros, Fortunato, Renée Hersilia

“…These areas are potential biodiversity hotspots and speciation centers for the native flora in subtropical South America and can serve as tools for conservation policies, especially in Sierra Chaco and Dry Chaco.…”
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Cytogeography and morphological characterisation of a taxonomic, polyploid complex of Mimosa (Leguminosae) from subtropical South America by Morales, Matias, Fradkin, Eduardo, Bessega, Cecilia Fabiana, Poggio, Lidia, Fortunato, Renee Hersilia

“…Our findings support the importance of polyploidy in the morphological diversity, distribution and speciation of this complex.…”
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Different lines of evidence used to delimit species in ticks : a study of the South American populations of Amblyomma parvum (Acari: Ixodidae) by Nava, Santiago, Gerardi, Monize, Szabó, Matías P.J., Mastropaolo, Mariano, Martins, Thiago F., Labruna, Marcelo B., Beati, Lorenza, Estrada-Peña, Agustín, Guglielmone, Alberto Alejandro

“…Although the gene flow between the two groups of populations is limited, the absence of reproductive barriers, the lack of significant morphological differences, and the absence of significant differences in the niche preferences indicate that populations of A. parvum from Argentina and Brazil should be treated as a single species. The speciation conjectures suggested by some analyses of mitochondrial DNA sequences were not supported when different lines of evidences were compared.…”
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Precipitation is the main axis of tropical phylogenetic turnover across space and time by Ringelberg, Jens J., Koenen, Erik J.M., Sauter, Benjamín, Aebli, Anahita, Rando, Juliana G., Iganci, João R., de Queiroz, Luciano P., Murphy, Daniel J., Gaudeul, Myriam, Bruneau, Anne, Luckow, Melissa, Morales, Matias

“…We demonstrate that 95% of speciation occurs within a precipitation niche, showing profound phylogenetic niche conservatism, and that lineage turnover boundaries coincide with isohyets of precipitation. …”
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Amblyomma parvum Aragão, 1908 (Acari: Ixodidae): Phylogeography and systematic considerations by Lado, Paula, Nava, Santiago, Labruna, Marcelo B., Szabó, Matías P.J., Durden, Lance A., Bermudez, Sergio, Montagna, Matteo, Sánchez Quirós, Ana C., Beati, Lorenza

“…This event might be the cause of fragmentation and putative speciation within the ancestral relatively xerophilic A. parvum population.…”
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Evolution of pre‐zygotic and post‐zygotic barriers to gene flow among three cryptic species within the Anastrepha fraterculus complex by Rull Gabayet, Juan Antonio, Abraham, Solana, Kovaleski, Adalesio, Segura, Diego Fernando, Mendoza, Mariana, Liendo, María Clara, Vera, Maria Teresa

“…Tropical tephritids are ideally suited for studies on population divergence and speciation because they include species groups undergoing rapid radiation, in which morphologically cryptic species and sister species are abundant. …”
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The “polyploid effect” in the breeding of aromatic and medicinal species by Iannicelli, Jesica, Guariniello, Julian, Tossi, Vanesa Eleonora, Regalado, Jose Javier, Di Ciaccio, Lucia Soledad, van Baren, Catalina María, Pitta Alvarez, Sandra, Escandon, Alejandro Salvio

“…The duplication of the genome, and its possible adaptive advantages, has been an important factor in the speciation and evolution of eukaryotes. The generation of synthetic polyploids as a plant breeding strategy has enabled the development of new and improved cultivars. …”
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Insights into chlorination-induced degradation of sulfonylurea herbicides: Unraveling kinetics and intermediates during water treatment by De Geronimo, Eduardo, Mosca, Agustín Ignacio, Cabrerizo, Franco M., Vargas, Ronald

“…Under acidic conditions, the reaction was significantly enhanced, likely due to hydrolysis or changes in the speciation of the organic compounds. In fact, the rate constant under acidic conditions was approximately 35 and 27 times higher than the reaction rate at more neutral pH for chlorimuron-ethyl and metsulfuron-methyl, respectively. …”
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Årstidsdynamik för kvicksilver i ett sövattensediment by Karlsson, Anna

“…In thesis the chemical speciation and transformations of Hg and MeHg in bottom waters and sediments is followed in Ängessjön, a small lake located on the east coast in the middle of Sweden. …”
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First report of secondary leaf fall in rubber trees caused by Phyllosticta capitalensis in the Eastern Plains of Colombia by Guevara Agudelo, Elsa Judith, Lopez Casallas, Marcela, Rivano, Franck, Castro Navarro, Olga Maria

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Phosphorus and nitrogen fractions during base flow conditions of a Pampean stream and their relationship with land use by Torti, Maria Juliana, Portela, Silvina Isabel, Andriulo, Adrian Enrique

“…The objectives of this study were to determine nitrogen (N) and phosphorus (P) fractions, trophic status and nutrient limitation of a typical Pampean stream, and to compare nutrient contents and speciation with different land uses (urban/industrial versus agricultural). …”
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Mastitis and death of a Corriedale ewe associated with Mycoplasma spp. infection in Buenos Aires province by Canton, German Jose, Fiorentino, María Andrea, Scioli, Maria Valeria, Lobo, Juan Ignacio, Sticotti, Erika, Tamiozzo, Pablo

“…The pathological findings were similar to the described in cases of contagious agalactia, therefore, Mycoplasma speciation was decided in order to discard the presence of this exotic disease.…”
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