Results 21 to 30 of about 1,499,816 (300)

16 Years of breed management brings substantial improvement in population genetics of the endangered Cleveland Bay Horse

open access: yesEcology and Evolution, 2021
The consequences of poor breed management and inbreeding can range from gradual declines in individual productivity to more serious fertility and mortality concerns.
Andrew Dell   +6 more
doaj   +1 more source

Calculation of the effective population size and estimating of total population size using mitochondrial DNA sequencing in Hamedan, Qazvin and Zanjan provinces [PDF]

open access: yesمجله بیوتکنولوژی کشاورزی, 2015
Although wolves have the ability to live in different habitat types, in recent years their population has been drastically reduced in most parts of the country and in some areas has become extinct.
Marziyeh Asadi Aqbelaghi   +4 more
doaj   +1 more source

Pedigree analysis in the Polish Red cattle population

open access: yesAnimal, 2021
The objective of this study was to describe the population structure and inbreeding level of the population of Polish Red Cattle (PRC). The structure of the breed was analysed in the context of the existing genetic resources conservation programme.
O. Jarnecka, E.A. Bauer, W. Jagusiak
doaj   +1 more source

An empirical examination of sample size effects on population demographic estimates in birds using single nucleotide polymorphism (SNP) data [PDF]

open access: yesPeerJ, 2020
Sample size is a critical aspect of study design in population genomics research, yet few empirical studies have examined the impacts of small sample sizes.
Jessica F. McLaughlin, Kevin Winker
doaj   +2 more sources

The Effective Size of a Subdivided Population [PDF]

open access: yesGenetics, 1997
This paper derives the long-term effective size, Ne, for a general model of population subdivision, allowing for differential deme fitness, variable emigration and immigration rates, extinction, colonization, and correlations across generations in these processes. We show that various long-term measures of Ne, are equivalent.
M C, Whitlock, N H, Barton
openaire   +2 more sources

Effective number of white shark (Carcharodon carcharias, Linnaeus) breeders is stable over four successive years in the population adjacent to eastern Australia and New Zealand

open access: yesEcology and Evolution, 2021
Population size is a central parameter for conservation; however, monitoring abundance is often problematic for threatened marine species. Despite substantial investment in research, many marine species remain data‐poor presenting barriers to the ...
Danielle Davenport   +5 more
doaj   +1 more source

Host body size, not host population size, predicts genome-wide effective population size of parasites [PDF]

open access: yes, 2023
Funding was provided by US NSF DEB-1342604, DEB-1925487 and DEB-1926919 grant awards to K.P.J., and European Commission grant H2020-MSCA-IF-2019 (INTROSYM:886532) to JD.The effective population size (N-e) of an organism is expected to be generally ...
Johnson, Kevin P., Doña Reguera, Jorge
core   +1 more source

Genetic Diversity and Population Structure of Zeugodacus Tau Walker (Diptera: Tephritidae) in Southern Thailand

open access: yesWalailak Journal of Science and Technology, 2021
The population structure of a fruit fly, Zeugodacus tau, was studied by a Single-Strand Conformation Polymorphism (SSCP) technique. Twenty haplotypes of Cytochrome Oxidase unit I (COI) sequence were found in flies collected from Southern Thailand.
Jingyoh ZAELOR   +2 more
doaj   +3 more sources

Effective population size in Busha and Gatačko cattle from Herzegovina: Ecological and molecular approach [PDF]

open access: yesAgroznanje, 2013
The effective population size (Ne) is one of basic core concepts in population genetics. Monitoring the effective population size, which is parallel to monitoring genetic variability, is of importance to population genetic studies and is applicable in ...
Rogić Biljana   +4 more
doaj   +1 more source

Pedigree analysis of Santa Inês sheep and inbreeding effects on performance traits

open access: yesRevista Mexicana de Ciencias Pecuarias, 2020
Population parameters such as effective population size and coefficients of inbreeding are important information of a population but have rarely been studied in Santa Inês sheep.
Ana Carla Borges Barbosa   +5 more
doaj   +1 more source

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