Results 31 to 40 of about 668,410 (314)

Genetic Variability in the Deep Sea: Relation to Environmental Variability [PDF]

open access: yesEvolution, 1972
A current concept of population biology holds that much genetic variability is maintained in populations as an adaptation tc environmental heterogeneity in time and space (Battaglia, 1963; Bretsky and Lorenz, 1971; Burns and Johnson, 1971; Powell, 1971). Environmental heterogeneity is thought to promote genetic variability by mechanisms of diversifying
James L, Goocii, Thomas J M, Schopf
openaire   +2 more sources

Analysis of genetic relationships between various populations of domestic and jungle fowl using microsatellite markers [Анализ генетического родства между различными популяциями домашних и диких джунглиевых (банкивских) кур с использованием микросателлитных маркеров. (Украина. ФРГ)] [PDF]

open access: yes, 2001
The genomes of domestic and jungle fowl populations maintained in Ukraine and Germany were screened using microsatellites as molecular markers. Genetic variation and genetic distances between strains of different origins and performance potentials were ...
Weigend, S, Romanov, Michael N
core   +1 more source

Genetic Variability, heritability and genetic advance studies in Carrot (Daucus carota var. sativa L.) [PDF]

open access: yesElectronic Journal of Plant Breeding, 2010
A study was carried out in mungbean Vigna radiata (L.) Wilczek) with eight ‘lines’ and four ‘testers’ crossed in a Line x Tester Geneticvariability, heritability and genetic advance were estimated for marketable and its component yield traits in 48 lines
Asima Amin and Jyoti singla
doaj  

Genetic variability, heritability and genetic advance studies in Vegetable Cowpea [Vigna unguiculata (L.) Walp.]

open access: yesElectronic Journal of Plant Breeding, 2016
Sixty diverse genotypes of vegetable cowpea were evaluated during summer 2013 for genetic parameters viz., genetic variability, heritability and genetic advance.
S. V. Khanpara   +3 more
doaj   +1 more source

Genetic variability of hepatitis A virus

open access: yesJournal of General Virology, 2003
Knowledge of the molecular biology of hepatitis A virus (HAV) has increased exponentially since its identification. HAV exploits all known mechanisms of genetic variation to ensure survival, including mutation and genetic recombination. HAV has been characterized by the emergence of different genotypes, three human antigenic variants and only one major
Mauro, Costa-Mattioli   +5 more
openaire   +2 more sources

Genetic variability and heritability studies in Virginia groundnut (Arachis hypogaea L.) [PDF]

open access: yesElectronic Journal of Plant Breeding, 2015
Sixty diverse genotypes of Virginia groundnut were evaluated during kharif 2013 for variability parameters. The estimates of PCV and GCV were high for plant height, number of primary branches per plant, number of mature pods per plant, 100-pod weight ...
R. P. Gupta, J. H. Vachhani V. H. Kachhadia, M. A. Vaddoria and Papi Reddy
doaj  

Evaluation of Carrot (Daucus carota L.) Hybrids at Mid-Elevation and Higher in the Nilgiris

open access: yesJournal of Horticultural Sciences, 2016
Investigations were made on yield and quality in six hybrids of carrot spanning two seasons under Nilgiri hill conditions during the year 2012-2013. The hybrids were evaluated for per se performance, genotypic coefficient of variance, heritability and ...
V P Santhi, P A Priya
doaj   +1 more source

Health‐Related Quality of Life and Symptom Severity Among Patients With PIK3CA‐Related Overgrowth Spectrum: A Mixed‐Methods Study to Understand Real‐World Experience With Alpelisib Treatment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background PIK3CA‐related overgrowth spectrum (PROS) includes several rare overgrowth disorders resulting from somatic gain‐of‐function mutations in PIK3CA. Despite treatment advances, including the recent approval of alpelisib for PROS in the United States, literature detailing the patient experience with PROS is limited.
Vamsi Bollu   +8 more
wiley   +1 more source

An Adaptive Search for the Response Time Variability Problem [PDF]

open access: yes, 2011
The Response Time Variability Problem (RTVP) is an NP-hard combinatorial scheduling problem, which has recently been reported and formalised in the literature.
Garcia-Villoria, Alberto   +3 more
core   +1 more source

Morphological and dasometric characterization of Mimosa trianae and Cassia moschata from AGROSAVIA collection

open access: yesTemas Agrarios, 2021
Cañafistol (Cassia moschata Kunth) and yopo (Mimosa trianae Benth.) are important native species in the Colombian Orinoco Region, however, their behavior in a monoculture system and genetic variability are unknown.
Sandra L. Castañeda Garzón   +4 more
doaj   +1 more source

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