Results 21 to 30 of about 1,189,577 (306)

Wild and cultivated olive tree genetic diversity in Greece: a diverse resource in danger of erosion

Frontiers in Genetics, 2023
The genetic relationships between Greek wild olive tree populations and cultivars were investigated. A total of 219 wild genotypes and 67 cultivar genotypes were analyzed by employing 10 SSR markers.
Nikolaos Tourvas, Ioannis Ganopoulos, Georgios Koubouris, George Kostelenos, Ioannis Manthos, Christos Bazakos, Christos Bazakos, Vasileios Stournaras, Athanassios Molassiotis, Filippos Aravanopoulos   +9 more
doaj   +1 more source

A Continuous Method for Gene Flow [PDF]

Genetics, 2013
Abstract Most modern population genetics inference methods are based on the coalescence framework. Methods that allow estimating parameters of structured populations commonly insert migration events into the genealogies. For these methods the calculation of the coalescence probability density of a genealogy requires a product over all ...
Michal, Palczewski, Peter, Beerli
openaire   +2 more sources

Conservation of Genetic Diversity of Scots Pine (Pinus sylvestris L.) in a Central European National Park Based on cpDNA Studies

Diversity, 2022
In the old pine stands of national parks, it is possible to observe genetic processes in a state free from disturbance by humans. Studies of this type make it possible to evaluate the effectiveness of the conservation of genetic variation and its ...
Paweł Przybylski, Anna Tereba, Joanna Meger, Iwona Szyp-Borowska, Łukasz Tyburski   +4 more
doaj   +1 more source

Sensory trait variation in an echolocating bat suggests roles for both selection and plasticity [PDF]

, 2014
Background: Across heterogeneous environments selection and gene flow interact to influence the rate and extent of adaptive trait evolution. This complex relationship is further influenced by the rarely considered role of phenotypic plasticity in the ...
Lizelle J Odendaal, Bishop, Jacqueline M, Jacobs, David S, Jacqueline M Bishop, Odendaal, Lizelle J, David S Jacobs   +5 more
core   +1 more source

Gene flow as a simple cause for an excess of high-frequency-derived alleles [PDF]

, 2020
Most human populations exhibit an excess of high-frequency variants, leading to a U-shaped site-frequency spectrum (uSFS). This pattern has been generally interpreted as a signature of ongoing episodes of positive selection, or as evidence for a mis ...
Laurent Excoffier, Excoffier, Laurent, Nina Marchi, Marchi, Nina   +3 more
core   +1 more source

Genetic differentiation that is exceptionally high and unexpectedly sensitive to geographic distance in the absence of gene flow: Insights from the genus Eranthis in East Asian regions

Ecology and Evolution, 2022
Genetic differentiation between populations is determined by various factors, including gene flow, selection, mutation, and genetic drift. Among these, gene flow is known to counter genetic differentiation.
Ami Oh, Byoung‐Un Oh
doaj   +1 more source

Polyphyly and gene flow between non-sibling Heliconius species

, 2006
Background: The view that gene flow between related animal species is rare and evolutionarily unimportant largely antedates sensitive molecular techniques.
McMillan, W Owen, Beltrán Margarita, Beltrán, Margarita, Mallet, James, Bull, V, Mallet, J, Bull, Vanessa, Jiggins Chris D, Jiggins, CD, McMillan W Owen, Jiggins, Chris D, Bermingham, Eldredge, Bermingham, E, Mallet James, Bermingham Eldredge, Beltran, M, McMillan, WO, Bull Vanessa   +17 more
core   +1 more source

Genomic Analyses of Wild and Cultivated Bacanora Agave (Agave angustifolia var. pacifica) Reveal Inbreeding, Few Signs of Cultivation History and Shallow Population Structure

Plants, 2022
Due to the recent increase in demand for agave-based beverages, many wild agave populations have experienced rapid decline and fragmentation, whereas cultivated plants are now managed at monocultural plantations, in some cases involving clonal ...
Anastasia Klimova, Karen Y. Ruiz Mondragón, Francisco Molina Freaner, Erika Aguirre-Planter, Luis E. Eguiarte   +4 more
doaj   +1 more source

Spontaneous gene flow and population structure in wild and cultivated chicory, Cichorium intybus L.

, 2008
Spontaneous gene flow between wild and cultivated chicory, Cichorium intybus L., may have implications for the genetic structure and evolution of populations and varieties.
Hauser, Thure P., Bagger Jørgensen, Rikke, Guadagnuola, R., Scotti, I., Jorgensen, R. B., Wiel, C., Kiær, L. P., I. Scotti, Hauser, T., JORGENSEN R. B., L. P. Kiær, FELBER F, GUIATTI, Denis, Kiær, L., R. Guadagnuolo, Kiaer, L.P., D. Guiatti, N. Syed, M. Vischi, Olivieri, A., KIAER L. P, T. P. Hauser, Kiaer, L. P., van de Wiel, C.C.M., van de Wiel, C., Jorgensen, R.B., SCOTTI I, C. van de Wiel, Flavell, A., F. Felber, Wiel, C. van de, VISCHI, Massimo, Vischi, M., Hauser, T.P., VAN DE VIEL C, Hauser, T. P., Kiær, Lars Pødenphant, SYED N, Guadagnuolo, Roberto, Guiatti, D., Jørgensen, R., OLIVIERI A. M, Scotti, Ivan, GUADAGNUOLO R, R. B. Jørgensen, Jørgensen, R.B., HAUSER T. P, Guadagnuolo, R., A. Flavell, Felber, F., Olivieri, A.M., Jørgensen, R. B., Hauser, Thure Pavlo, Olivieri, A. M., Syed, N., A. M. Olivieri, FLAVELL A, Felber, François, Wiel, C.C.M., van de   +58 more
core   +1 more source

High gene flows promote close genetic relationship among fine-wool sheep populations (Ovis aries) in China

Journal of Integrative Agriculture, 2016
The aim of our present study was to construct genetic structure and relationships among Chinese fine-wool sheep breeds. 46 individuals from 25 breeds or strains were genotyped based on the Illumina Ovine 50K SNP array. Meanwhile, genetic variations among
Ji-long HAN, Min YANG, Ting-ting GUO, Jian-bin LIU, Chun-e NIU, Chao YUAN, Yao-jing YUE, Bo-hui YANG   +7 more
doaj   +1 more source