Results 21 to 30 of about 3,343,818 (361)

Factors affecting interspecific differences in genetic divergence among populations of Anolis lizards in Cuba

Zoological Letters, 2018
Background Geographical patterns and degrees of genetic divergence among populations differ between species, reflecting relative potentials for speciation or cladogenesis and differing capacities for environmental adaptation.
Antonio Cádiz, Nobuaki Nagata, Luis M. Díaz, Yukari Suzuki-Ohno, Lázaro M. Echenique-Díaz, Hiroshi D. Akashi, Takashi Makino, Masakado Kawata   +7 more
doaj   +1 more source

DNA sequence evidence for speciation, paraphyly and a Mesozoic dispersal of cancellothyridid articulate brachiopods [PDF]

, 2002
Because the classification of extant and fossil articulate brachiopods is based largely upon shell characters observable in fossils, it identifies morphotaxa whose biological status can, in practice, best be inferred from estimates of genetic divergence.
Cohen, B.L., Luter, C.
core   +1 more source

Levels of genetic polymorphism: marker loci versus quantitative traits [PDF]

, 1998
Species are the units used to measure ecological diversity and alleles are the units of genetic diversity. Genetic variation within and among species has been documented most extensively using allozyme electrophoresis.
Butlin R. K., Butlin R. K., Meyer J., Muller H. J., Neems R. M., Nei M., Ward R. D., Watt W. B., Watt W. B., Wu C-I.   +9 more
core   +3 more sources

Genetic and phenotypic divergence in an island bird: isolation by distance, by colonization or by adaptation? [PDF]

, 2014
Discerning the relative roles of adaptive and nonadaptive processes in generating differences among populations and species, as well as how these processes interact, is a fundamental aim in biology.
Dawson, Deborah A., Illera, Juan Carlos, Jorgensen, Tove H., Richardson, David S., Spurgin, Lewis G.   +4 more
core   +2 more sources

The pomegranate (Punica granatum L.) draft genome dissects genetic divergence between soft‐ and hard‐seeded cultivars

Plant Biotechnology Journal, 2019
Summary Complete and highly accurate reference genomes and gene annotations are indispensable for basic biological research and trait improvement of woody tree species.
Xiang Luo, Haoxian Li, Zhikun Wu, Wen Yao, P. Zhao, Da Cao, Haiyan Yu, Kaidi Li, Krishna Poudel, Diguang Zhao, Fuhong Zhang, Xiaocong Xia, Lina Chen, Qi Wang, Dan-Feng Jing, Shangyin Cao   +15 more
semanticscholar   +1 more source

Dengue genetic divergence generates within-serotype antigenic variation, but serotypes dominate evolutionary dynamics

eLife, 2019
Dengue virus (DENV) exists as four genetically distinct serotypes, each of which is historically assumed to be antigenically uniform. Recent analyses suggest that antigenic heterogeneity may exist within each serotype, but its source, extent and impact ...
Sidney M. Bell, Leah C. Katzelnick, T. Bedford   +2 more
semanticscholar   +1 more source

Genetics of ecological divergence during speciation [PDF]

Nature, 2014
Ecological differences often evolve early in speciation as divergent natural selection drives adaptation to distinct ecological niches, leading ultimately to reproductive isolation. Although this process is a major generator of biodiversity, its genetic basis is still poorly understood.
Arnegard, M., McGee, M., Matthews, B., Marchinko, K., Conte, G., Kabir, S., Bedford, N., Bergek, S., Chan, Y., Jones, F., Kingsley, D., Peichel, C., Schluter, D.   +12 more
openaire   +3 more sources

Wandering behaviour prevents inter and intra oceanic speciation in a coastal pelagic fish [PDF]

, 2017
Small pelagic fishes have the ability to disperse over long distances and may present complex evolutionary histories. Here, Old World Anchovies (OWA) were used as a model system to understand genetic patterns and connectivity of fish between the Atlantic
A Magoulas, A Moan Le, AGF Teacher, AGK Mirams, BW Bowen, CP Burridge, D Duchene, D Posada, DM Sigman, G Silva, H Akaike, HA Lessios, HA Lessios, I Montes, I Zarraonaindia, J DiBattista, JB Horne, JB Kristoffersen, JC Briggs, JC Briggs, JR Marlow, JS Reece, JX Liu, K Keenan, K Tamura, L Cárdenas, L Excoffier, L Jost, LA Rocha, N Ryman, N Sanz, P Beerli, P Beerli, P Beerli, P Borsa, PG Meirmans, PS Pennings, PW Hedrick, R Bouckaert, R Henriques, R Jansson, RA Schwartzlose, S Guindon, S Jemaa, S Lavoué, SR Palumbi, T Gernhard, T Jombart, WS Grant, WS Grant, WS Grant, WS Grant   +51 more
core   +2 more sources

Between-Region Genetic Divergence Reflects the Mode and Tempo of Tumor Evolution

Nature Genetics, 2017
Given the implications of tumor dynamics for precision medicine, there is a need to systematically characterize the mode of evolution across diverse solid tumor types. In particular, methods to infer the role of natural selection within established human
Ruping Sun, Zheng Hu, A. Sottoriva, T. Graham, A. Harpak, Zhicheng Ma, Jared M. Fischer, D. Shibata, C. Curtis   +8 more
semanticscholar   +1 more source

Genetic divergence disclosing a rapid prehistorical dispersion of Native Americans in Central and South America. [PDF]

PLoS ONE, 2012
An accurate estimate of the divergence time between Native Americans is important for understanding the initial entry and early dispersion of human beings in the New World.
Yungang He, Wei R Wang, Ran Li, Sijia Wang, Li Jin   +4 more
doaj   +1 more source