Genetic variability of Tropical Milking Criollo cattle of Mexico estimated from genealogy information

Background: Genetic variability of populations is essential for their genetic conservation and improvement, and genealogy analysis is a useful tool to estimate it. Objective: To determine genetic variability and inbreeding levels in Tropical Milking Criollo (LT). Methods: This study analyzed the gen...

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Autores principales:	Adalberto Rosendo Ponce, Ana L. Palacios Jiménez, Froylan Rosales Martínez, Glafiro Torres Hernández, Rodolfo Ramírez Valverde, Carlos M. Becerril Pérez
Formato:	article
Lenguaje:	EN
Publicado:	Universidad de Antioquia 2018
Materias:	cattle populations conservation hot climates originating genes pedigree analysis Animal culture SF1-1100
Acceso en línea:	https://doaj.org/article/3cb28e6c7ffc4b0ebba0b6ad4b8552e1
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spelling	oai:doaj.org-article:3cb28e6c7ffc4b0ebba0b6ad4b8552e12021-12-01T19:25:55ZGenetic variability of Tropical Milking Criollo cattle of Mexico estimated from genealogy information2256-295810.17533/udea.rccp.v31n3a04https://doaj.org/article/3cb28e6c7ffc4b0ebba0b6ad4b8552e12018-08-01T00:00:00Zhttps://revistas.udea.edu.co/index.php/rccp/article/view/330534https://doaj.org/toc/2256-2958Background: Genetic variability of populations is essential for their genetic conservation and improvement, and genealogy analysis is a useful tool to estimate it. Objective: To determine genetic variability and inbreeding levels in Tropical Milking Criollo (LT). Methods: This study analyzed the genealogy of LT using the ENDOG software. Registration certificates of 3,427 LT animals born between 1945 and 2013, and from 608 born between 1950 and 2013 were used. Two populations were defined: the first one with all registered animals (PLT), and the second with nucleus animals (PCP). Results: Estimates for PLT and PCP were: founders 890, 114; ancestors 855, 102; effective founders 111, 43; effective ancestors 72, 26, and effective population size 68.1 and 64.6, respectively. Inbreeding coefficients were 4.32 and 3.48% for the highest genetic integrity index; and the average relatedness (AR) coefficients were 1.19 and 5.55 for PLT and PCP, respectively. Genealogy depth was shallow in both populations, with full equivalent generations of 2.00 and 3.53. Global generation intervals were about seven years. Conclusions: The LT population is not endangered and its genetic improvement program should continue.Adalberto Rosendo PonceAna L. Palacios JiménezFroylan Rosales MartínezGlafiro Torres HernándezRodolfo Ramírez ValverdeCarlos M. Becerril PérezUniversidad de Antioquiaarticlecattle populationsconservationhot climatesoriginating genespedigree analysisAnimal cultureSF1-1100ENRevista Colombiana de Ciencias Pecuarias, Vol 31, Iss 3, Pp 196-203 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	cattle populations conservation hot climates originating genes pedigree analysis Animal culture SF1-1100
spellingShingle	cattle populations conservation hot climates originating genes pedigree analysis Animal culture SF1-1100 Adalberto Rosendo Ponce Ana L. Palacios Jiménez Froylan Rosales Martínez Glafiro Torres Hernández Rodolfo Ramírez Valverde Carlos M. Becerril Pérez Genetic variability of Tropical Milking Criollo cattle of Mexico estimated from genealogy information
description	Background: Genetic variability of populations is essential for their genetic conservation and improvement, and genealogy analysis is a useful tool to estimate it. Objective: To determine genetic variability and inbreeding levels in Tropical Milking Criollo (LT). Methods: This study analyzed the genealogy of LT using the ENDOG software. Registration certificates of 3,427 LT animals born between 1945 and 2013, and from 608 born between 1950 and 2013 were used. Two populations were defined: the first one with all registered animals (PLT), and the second with nucleus animals (PCP). Results: Estimates for PLT and PCP were: founders 890, 114; ancestors 855, 102; effective founders 111, 43; effective ancestors 72, 26, and effective population size 68.1 and 64.6, respectively. Inbreeding coefficients were 4.32 and 3.48% for the highest genetic integrity index; and the average relatedness (AR) coefficients were 1.19 and 5.55 for PLT and PCP, respectively. Genealogy depth was shallow in both populations, with full equivalent generations of 2.00 and 3.53. Global generation intervals were about seven years. Conclusions: The LT population is not endangered and its genetic improvement program should continue.
format	article
author	Adalberto Rosendo Ponce Ana L. Palacios Jiménez Froylan Rosales Martínez Glafiro Torres Hernández Rodolfo Ramírez Valverde Carlos M. Becerril Pérez
author_facet	Adalberto Rosendo Ponce Ana L. Palacios Jiménez Froylan Rosales Martínez Glafiro Torres Hernández Rodolfo Ramírez Valverde Carlos M. Becerril Pérez
author_sort	Adalberto Rosendo Ponce
title	Genetic variability of Tropical Milking Criollo cattle of Mexico estimated from genealogy information
title_short	Genetic variability of Tropical Milking Criollo cattle of Mexico estimated from genealogy information
title_full	Genetic variability of Tropical Milking Criollo cattle of Mexico estimated from genealogy information
title_fullStr	Genetic variability of Tropical Milking Criollo cattle of Mexico estimated from genealogy information
title_full_unstemmed	Genetic variability of Tropical Milking Criollo cattle of Mexico estimated from genealogy information
title_sort	genetic variability of tropical milking criollo cattle of mexico estimated from genealogy information
publisher	Universidad de Antioquia
publishDate	2018
url	https://doaj.org/article/3cb28e6c7ffc4b0ebba0b6ad4b8552e1
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Genetic variability of Tropical Milking Criollo cattle of Mexico estimated from genealogy information

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