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| Rougemont, Quentin; Carrier, Anne; Le Luyer, Jeremy; Ferchaud, Anne-laure; Farrell, John M.; Hatin, Daniel; Brodeur, Philippe; Bernatchez, Louis. |
| Understanding the genetic and evolutionary impacts of stocking on wild fish populations has long been of interest as negative consequences such as reduced fitness and loss of genetic diversity are commonly reported outcomes. In an attempt to sustain a fishery, managers implemented nearly five decades of extensive stocking of over a million Muskellunge (Esox masquinongy), a native species in the Lower St. Lawrence River (Québec, Canada). We investigated the effect of this stocking on population genetic structure and allelic diversity in the St. Lawrence River in addition to tributaries and several stocked inland lakes. Using Genotype‐By‐Sequencing (GBS), we genotyped 643 individuals representing 22 locations and combined this information with forward... |
| Tipo: Text |
Palavras-chave: Admixture; Esox masquinongy; Forward simulations; Gene flow; Genomic; Stocking. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00476/58791/61324.pdf |
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| Parolin,M.L; Zanetti,D; Calò,C.M; Esteban,E; Avena,S; Carnese,F.R; Moral,P. |
| This study aimed to analyze autosomal Alu insertions in three localities from Patagonia Argentina belonging to the Andes region and the coast of the Chubut province. Knowledge of the genetic diversity of these populations, along with the genealogical data, will contribute to better understand historical information, differential migration process and bio-demographic composition of the Central Patagonia region. In order to achieve this objective, 16 autosomal Alu insertion polymorphisms were genotyped: ACE, APO-A1, TPA25, FXIIIB, A25, HS4.32, D1, HS4.69, HS2.43, Sb19.12, Yb8NBC120, Sb19.3, Yb8NBC125, Ya5NBC221, DM, and CD4. Our results showed that the Central Patagonia region presents a complex continental genetic admixture with marked Native American roots... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alu insertion polymorphisms; Argentina Central Patagonia; Admixture; Migrations. |
| Ano: 2017 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332017000300004 |
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| Yunis,Juan J.; Yunis,Emilio J.. |
| The frequencies of four mitochondrial Native American DNA haplogroups were determined in 1526 unrelated individuals from 11 Departments of Colombia and compared to the frequencies previously obtained for Amerindian and Afro-Colombian populations. Amerindian mtDNA haplogroups ranged from 74% to 97%. The lowest frequencies were found in Departments on the Caribbean coast and in the Pacific region, where the frequency of Afro-Colombians is higher, while the highest mtDNA Amerindian haplogroup frequencies were found in Departments that historically have a strong Amerindian heritage. Interestingly, all four mtDNA haplogroups were found in all Departments, in contrast to the complete absence of haplogroup D and high frequencies of haplogroup A in Amerindian... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Admixture; Colombia; Haplogroup; Mestizo; Mitochondrial DNA. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000300005 |
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| Simon, Alexis; Arbiol, Christine; Nielsen, Einar Eg; Couteau, Jérôme; Sussarellu, Rossana; Burgeot, Thierry; Bernard, Ismaël; Coolen, Joop W. P.; Lamy, Jean-baptiste; Robert, Stephane; Skazina, Maria; Strelkov, Petr; Queiroga, Henrique; Cancio, Ibon; Welch, John J.; Viard, Frédérique; Bierne, Nicolas. |
| Human‐mediated transport creates secondary contacts between genetically differentiated lineages, bringing new opportunities for gene exchange. When similar introductions occur in different places, they provide informally replicated experiments for studying hybridisation. We here examined 4,279 Mytilus mussels, sampled in Europe and genotyped with 77 ancestry‐informative markers. We identified a type of introduced mussels, called “dock mussels,” associated with port habitats and displaying a particular genetic signal of admixture between M. edulis and the Mediterranean lineage of M. galloprovincialis. These mussels exhibit similarities in their ancestry compositions, regardless of the local native genetic backgrounds and the distance separating colonised... |
| Tipo: Text |
Palavras-chave: Admixture; Bentho-pelagic species; Biological introductions; Clines; Ports; Secondary contact. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00594/70600/68791.pdf |
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| Bortolini,Maria Cátira; Thomas,Mark G.; Chikhi,Lourdes; Aguilar,Juan A.; Castro-De-Guerra,Dinorah; Salzano,Francisco M.; Ruiz-Linares,Andres. |
| Four biallelic and six multiallelic Y-chromosome polymorphisms were investigated in 59 Gran Canarian, 60 North African Berber and 46 Spanish subjects. These new data were merged with equivalent literature information to obtain the parental Y-chrosomomal contribution in Gran Canarians, Colombians, and Venezuelans. The results were then compared, for Gran Canarians and Colombians, to those derived from autosomal and mtDNA. In both groups, the Spanish Y-chromosome contribution was much more marked than that estimated using mtDNA. This analysis showed a usual trend in the Spanish Colonial history, characterized by a demographic collapse of the aboriginal population, but with considerable introgression of genes through native women. In accordance to D.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gran Canaria; Y-chromosome polymorphisms; Admixture. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000100001 |
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| Souza,Ilíada Rainha de; Culpi,Lodércio. |
| A southern Brazilian isolated community of predominantly sub-Saharan African origin, with a total population of 74 individuals and high degree of inbreeding (F = 0.081) was studied. The small sizes of the breeding (35) and effective (21) populations, as well as the very small effective migration rate (4%), suggest a high probability for the occurrence of genetic drift. A sample was typed for fourteen blood genetic systems and most of these systems seem to reveal the founder effect. This evolutionary factor was probably responsible for the absence of some polymorphic alleles frequent in African populations, i.e.: ABO*B, RHD-RHCE*DCe, GPA-GPB*NS (MNSs*NS), GPA-GPB*NS U (MNSs*NSU), HBB*S, HP*2M and ESD*2. The most unusual allele frequency was that for BCHE*A,... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Isolated community; Polymorphism; Random genetic drift; Blood systems; Admixture. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000300012 |
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