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How the Mammoth Got its Wool: Genetic changes are identified that helped the woolly mammoth survive in the Arctic（图）
Mammoth Got its Wool Genetic changes identified woolly mammoth survive Arctic
2015/7/13
Evolutionary change in a gene resurrected in the lab from the extinct woolly mammoth altered the gene's temperature sensitivity and likely was part of a suite of adaptations that allowed the mammoth t...
Mitochondrial DNA-based genetic evaluation of autochthonous cattle breeds in Croatia
mtDNA genetic diversity Bos taurus
2015/7/2
Genetic diversity and phylogenetic relationship of three Croatian autochthonous cattle breeds was analyzed using a sequence of the mtDNA D-loop region. Among Busha, Istrian, and Slavonian Syrmian Podo...
Genetic correlations between longevity and conformation traits in the Czech Holstein population
cows Holstein breed longevity
2015/6/23
Genetic correlations between longevity and conformation traits were estimated using data
on Czech Holstein cows first calved in the years 1993–2008. Longevity traits considered were length of
prod...
Genetic Study of ‘Co-Evolution’Could Provide Clues to Better Food Production
Genetic Study Co-Evolution Provide Clues Better Food Production
2015/7/13
In 1964, renowned biologists Peter Raven and Paul Erhlich published a landmark study that introduced the concept of co-evolution. Using butterflies and plants as primary examples, the team deter...
Genetic diversity and relationship between genetic distance and geographical distance in 14 Chinese indigenous chicken breeds and red jungle fowl
genetic diversity microsatellite genetic distance
2015/6/8
Genetic diversity and the relationship between genetic distance and geographical distance in red jungle fowl and 14 Chinese indigenous chicken breeds were evaluated using 29 microsatellite loci. The n...
DNA microsatellite analysis of genetic diversity among Chinese indigenous laying-type ducks (Anas platyrhynchos)
duck PCR microsatellite
2015/6/8
The genetic polymorphisms of 17 microsatellites were investigated in four indigenous laying-type duck breeds in China. The average number of alleles (Na) and average rates of homozygotes of each breed...
Study of genetic differences among Slovak Tsigai populations using microsatellite markers
Slovak Tsigai sheep microsatellite markers genetic relationship
2015/6/8
In this study genetic diversity, population structure and genetic relationships of Tsigai populations in Slovakia were investigated using microsatellite markers. Altogether 195 animals from 12 populat...
Analysis of genetic polymorphism in six meat sheep breeds and genetic distances between them
sheep microsatellite DNA genetic polymorphism
2015/6/8
The genomes of 6 sheep populations (Dorset, Texel, Black-Suffolk, Tan sheep, Small-tailed Han sheep, Tan and Small-tailed Han hybrid sheep) were screened using 7 microsatellite DNA markers to estimate...
Iowa State University researchers discover surprisingly wide variation across species in genetic systems that influence aging
Iowa State University researchers surprisingly wide variation across species genetic systems influence aging
2015/6/2
A new Iowa State University study focusing on insulin signaling uncovered surprising genetic diversity across reptiles, birds and mammals.The research sets the stage for an improved understanding of m...
Iowa State University researchers discover surprisingly wide variation across species in genetic systems that influence aging
Iowa State University researchers surprisingly wide variation across species genetic systems
2015/6/18
A new Iowa State University study focusing on insulin signaling uncovered surprising genetic diversity across reptiles, birds and mammals.The research sets the stage for an improved understanding of m...
Genetic Parameters of Pre-adjusted Body Weight Growth and Ultrasound Measures of Body Tissue Development in Three Seedstock Pig Breed Populations in Korea
Pig Growth Trait Ultrasound Measures Heritability Genetic Correlation
2016/5/19
The objective of this study was to compare the effects of body weight growth adjustment methods on genetic parameters of body growth and tissue among three pig breeds. Data collected on 101,820 Landra...
Genetic Parameters for Milk Yield and Lactation Persistency Using Random Regression Models in Girolando Cattle
Lactation Persistency Legendre’s Polynomials Random Regression Model Cattle
2016/5/19
A total of 32,817 test-day milk yield (TDMY) records of the first lactation of 4,056 Girolando cows daughters of 276 sires, collected from 118 herds between 2000 and 2011 were utilized to estimate the...
Genetic Association of the Porcine C9 Complement Component with Hemolytic Complement Activity
Porcine C9 Polymorphisms Hemolytic Complement Activity
2016/5/18
The complement system is a part of the natural immune regulation mechanism against invading pathogens. Complement activation from three different pathways (classical, lectin, and alternative) leads to...
Genetic Relationship of Productive Life, Production and Type Traits of Korean Holsteins at Early Lactations
Productive Life Production Traits Type Traits Heritability Correlation Korean Holstein
2016/5/18
The present study was performed to study the genetic relationship of productive life with production and type traits of Korean Holsteins at first three lactations. The data for the analysis from 56,05...
Genetic Analysis of Milk Yield in First-Lactation Holstein Friesian in Ethiopia: A Lactation Average vs Random Regression Test-Day Model Analysis
Dairy Cattle Genetic Parameters Random Regression Test-Day Model Test-Day Records
2016/5/18
The development of effective genetic evaluations and selection of sires requires accurate estimates of genetic parameters for all economically important traits in the breeding goal. The main objective...