Examinando por Materia "Phylogenetic analysis"

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The complete mitochondrial genome of a Peruvian creole cattle (Bos taurus) and its phylogenetic analysis
(Wageningen Academic Publishers, 2023-02-09) Arbizu Berrocal, Carlos Irvin; Ferro Mauricio, Rubén Darío; Chávez Galarza, Julio César; Vásquez Pérez, Héctor Vladimir; Maicelo Quintana, Jorge Luis; Poemape Tuesta, Carlos Augusto; Gonzáles, J.; Quilcate Pairazamán, Carlos Enrique; Corredor Arizapana, Flor Anita
The population of Peruvian creole cattle (PCC) is decreasing mainly due to the introduction of more productive breeds in recent years. We report the complete mitochondrial genome sequence of a PCC bull for the first time. This genome was 16,339 bp in length with the base composition 31.43% A, 28.64% T, 26.81% C, and 13.12% G. It contained 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes and a control region. Among the 37 genes, 28 were positioned on the H-strand and 9 were positioned on the L-strand. The most frequently used codons were CUA (Leucine), AUA (Isoleucine), AUU (Isoleucine), AUC (Isoleucine) and ACA (Threonine). Maximum likelihood analysis clearly demonstrated that PCC are strongly related to a native African breed, giving insights into the maternal ancestry of PCC. The annotated mitochondrial genome of PCC would serve as an important genetic data set for further breeding work and conservation strategies.
Complete mitogenome, phylogenetic and SNP-data analysis of jakumaru (Bos taurus), a prime bull from a Peruvian breeding core herd
(Unique Scientific Publishers, 2025-01-22) Estrada Cañari, Richard; Romero Avila, Yolanda Madelein; Figueroa Venegas, Deyanira Antonella; Quilcate Pairazamán, Carlos Enrique; León Trinidad, Silvia Eliana; Casanova Nuñez Melgar, David pavel; Maicelo, Jorge L.; Arbizu, Carlos I.
This study provides a comprehensive mitochondrial genome sequence and a phylogenetic analysis of Jakumaru (Bos taurus), a prominent bull from a Peruvian breeding program. The mitochondrial genome, spanning 16,340bp, comprises 13 protein-coding genes, 22 tRNA genes, and 2 rRNA genes, with a GC content of 40%. The gene arrangement and structural organization are highly conserved, closely resembling those of related Bovine species, indicating a stable genomic architecture essential for mitochondrial function. Phylogenetic analysis, incorporating 35 complete bovine mitochondrial genomes, positions Jakumaru within Subclade I, revealing a close relationship with European Simmental cattle. The study emphasizes the biological diversity and the evolution of the Simmental breed, influenced by natural selection, breeding practices, and genetic drift. These findings enhance our understanding of the breed's genetic variation and its evolution, particularly in the context of its importance in Peru