Browsing by Author "Landi, Vincenzo"

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    The genetic ancestry of American Creole cattle inferred from uniparental and autosomal genetic markers
    Ginja, Catarina; Gama, Luis Telo; Cortes, Oscar; Martin Burriel, Inmaculada; Luis Vega-Pla, Jose; Penedo, Cecilia; Sponenberg, D. Phillip; Canon, Javier; Sanz, Arianne; do Egito, Andrea Alves; Angela Alvarez, Luz; Giovambattista, Guillermo; Agha, Saif; Rogberg-Munoz, Andres; Cassiano Lara, Maria Aparecida; Delgado Bermejo, Juan Vicente; Martínez, Amparo; Afonso, Sonia; Aguirre, Lenin; Armstrong, Eileen; Camacho Vallejo, María Esperanza; Canales, Amado; Cassama, Bernardo; Contreras, Gloria; Moras Cordeiro, J. M.; Dunner, Susana; Elbeltagy, Ahmed; Soares Fioravanti, Maria Clorinda; Gomez Carpio, Mayra; Gomez, Mariano; Hernandez, Antonio; Hernandez, Darwin; Juliano, Raquel Soares; Landi, Vincenzo; Marques, Ribamar; Martinez, Ruben D.; Roberto Martinez, O.; Melucci, Lilia; Molina Flores, Baldomero; Mujica, Fernando; Pares i Casanova, Pere-Miquel; Quiroz, Jorge; Rodellar, Clementina; Tjon, Gerald; Adebambo, Tumininu; Uffo, Odalys; Cesar Vargas, Julio; Villalobos, Axel; Zaragoza, Pilar (Springer Nature, 2019-08-07)
    Cattle imported from the Iberian Peninsula spread throughout America in the early years of discovery and colonization to originate Creole breeds, which adapted to a wide diversity of environments and later received influences from other origins, including zebu cattle in more recent years. We analyzed uniparental genetic markers and autosomal microsatellites in DNA samples from 114 cattle breeds distributed worldwide, including 40 Creole breeds representing the whole American continent, and samples from the Iberian Peninsula, British islands, Continental Europe, Africa and American zebu. We show that Creole breeds differ considerably from each other, and most have their own identity or group with others from neighboring regions. Results with mtDNA indicate that T1c-lineages are rare in Iberia but common in Africa and are well represented in Creoles from Brazil and Colombia, lending support to a direct African influence on Creoles. This is reinforced by the sharing of a unique Y-haplotype between cattle from Mozambique and Creoles from Argentina. Autosomal microsatellites indicate that Creoles occupy an intermediate position between African and European breeds, and some Creoles show a clear Iberian signature. Our results confirm the mixed ancestry of American Creole cattle and the role that African cattle have played in their development.
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    Tracing Worldwide Turkey Genetic Diversity Using D-loop Sequence Mitochondrial DNA Analysis
    Canales Vergara, Amado Manuel; Landi, Vincenzo; Delgado Bermejo, Juan Vicente; Martínez, Amparo; Cervantes Acosta, Patricia; Pons Barro, Águeda; Bigi, Daniele; Sponenberg, D. Phillip; Helal, Mostafa; Hossein Banabazi, Mohammad; Camacho Vallejo, María Esperanza (MDPI, 2019-11-01)
    According to recent archeological evidence, turkey (Meleagris gallopavo gallopavo) domestication may have occurred in Mexico around 2000 years ago. However, little is known about the phylogenetic and genealogical background underlying domestic turkey populations. This study aimed to further understand the domestication process and identify inter- or intraspecific connections between turkey populations to determine their origins, trace their global expansion, and define the species’ genetic value. Ninety-three domestic turkeys (local breeds) were sampled from populations in Brazil, Mexico, USA, Spain, Italy, Iran, and Egypt. Publicly available sequences from previous studies were also included. Standard mitochondrial DNA, genetic diversity, and haplotype network analyses were performed. Seventy-six polymorphic sites were identified. Turkeys from Mexico showed the greatest number of polymorphic sites (40), while turkeys from Italy and Brazil reported only one site each. Nucleotide diversity was also highest in Mexico and the USA (π = 0.0175 and 0.0102, respectively) and lowest in Brazil and Italy. Of the six major haplogroups defined, the Mexican and USA populations appeared to have remained more stable and diverse than the other populations. This may be due to conservative husbandry policies in the rural areas of other populations, which have prevented the introduction of commercial turkey lines.