نتایج جستجو برای: genotypic correlationcoefficients

تعداد نتایج: 13097  

Bacterial wilt caused by Ralstonia solanacearum is one of the most destructive diseases which negatively affect the tomato production worldwide. Considering the importance of the disease, using biological control agents could be effective approaches in reducing the damage of the pathogen. Tomato samples of suspected bacterial wilt disease were gathered from different regions of East Azarbayjan....

Journal: :Genetics 1964
D L HARRIS

VER nearly half a century numerous workers have considered covariances and/or correlations between genotypic values of relatives and have related these population parameters to more basic parameters descriptive of the Mendelian mechanism of inheritance for diploids and the modes of gene action. FISHER (1918) considered random mating populations and developed formulae for the correlations betwee...

Journal: :Biology letters 2008
Jason J Kolbe Allan Larson Jonathan B Losos Kevin de Queiroz

Molecular genetic analyses show that introduced populations undergoing biological invasions often bring together individuals from genetically disparate native-range source populations, which can elevate genotypic variation if these individuals interbreed. Differential admixture among multiple native-range sources explains mitochondrial haplotypic diversity within and differentiation among invas...

Journal: :The Journal of infectious diseases 1998
P S Eastman D E Shapiro R W Coombs L M Frenkel G D McSherry P Britto S A Herman R S Sperling

Maternal samples were assessed from 96 women enrolled in Pediatric AIDS Clinical Trials Group protocol 076 to determine the prevalence of human immunodeficiency virus type 1 (HIV-1) genotypic zidovudine resistance at entry, if zidovudine resistance developed on study, and the role of zidovudine resistance in vertical transmission of HIV-1 despite zidovudine therapy. Low and high levels of genot...

Journal: :Genetics 1955
O Kempthorne

considered herein is that of the correlation between relatives in such a population. The assumption is that segregation is by chromosomes rather than chromatids; that is, if an individual is abcd, then there are six equally likely contributions to the offspring consisting of ab, ac, ad, bc, bd, and cd. We suppose that the phenotype (P) of an autotetraploid is made up additively of two parts whi...

2005
Aryeh Warmflash Martin Weigert Aaron R. Dinner

Journal: :Biology letters 2014
Daniel E Janes Christopher L Organ Rami Stiglec Denis O'Meally Stephen D Sarre Arthur Georges Jennifer A M Graves Nicole Valenzuela Robert A Literman Kim Rutherford Neil Gemmell John B Iverson Jeffrey W Tamplin Scott V Edwards Tariq Ezaz

In reptiles, sex-determining mechanisms have evolved repeatedly and reversibly between genotypic and temperature-dependent sex determination. The gene Dmrt1 directs male determination in chicken (and presumably other birds), and regulates sex differentiation in animals as distantly related as fruit flies, nematodes and humans. Here, we show a consistent molecular difference in Dmrt1 between rep...

Journal: :Genetics and molecular research : GMR 2012
F S Carneiro A E B Lacerda M R Lemes R Gribel M Kanashiro A M Sebbenn

The Neotropical tree Hymenaea courbaril, locally known as Jatobá, is a valuable source of lumber and also produces comestible and medicinal fruit. We characterized Mendelian inheritance, linkage and genotypic disequilibrium at nine microsatellite loci isolated from H. courbaril, in order to determine if they would provide accurate estimates of population genetic parameters of this importan...

Journal: :Revista iberoamericana de micologia 2004
Juliana Campos de Pinho Resende Glória Regina Franco Carlos Augusto Rosa Rosa Christine Hahn Júnia Soares Hamdam

As candidosis incidence continue to rise, quick laboratory identification of Candida species is becoming increasingly important for a growing population of patients at-risk. RAPD techniques were used on samples of Candida obtained from patients hospitalized at Santa Casa de Misericordia in Belo Horizonte (SCMBH) Brazil, from March 1998 to December 2000 and then compared with the results of phen...

Journal: :Bioresource technology 2011
E M Hodgson D J Nowakowski I Shield A Riche A V Bridgwater J C Clifton-Brown I S Donnison

Different species and genotypes of Miscanthus were analysed to determine the influence of genotypic variation and harvest time on cell wall composition and the products which may be refined via pyrolysis. Wet chemical, thermo-gravimetric (TGA) and pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) methods were used to identify the main pyrolysis products and determine the extent to which...

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