Results 11 to 20 of about 2,064,271 (324)

Polymorphism of the grasshopper Rhammatocerus schistocercoides populations revealed by RAPD [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2002
The objective of this work was to study the genetic variability of the grasshopper Rhammatocerus schistocercoides (Orthoptera: Acrididae) using RAPD analysis among individuals from three populations, one from Colombia and two from Brazil (Goiás and Mato ...
João Batista Tavares da Silva   +3 more
doaj   +1 more source

Levels of genetic polymorphism: marker loci versus quantitative traits [PDF]

open access: yes, 1998
Species are the units used to measure ecological diversity and alleles are the units of genetic diversity. Genetic variation within and among species has been documented most extensively using allozyme electrophoresis.
Butlin R. K.   +9 more
core   +3 more sources

Genetic study of litter size and litter uniformity in Landrace pigs

open access: yesRevista Brasileira de Zootecnia, 2020
We aimed to estimate litter size and litter uniformity genetic parameters and genetic trends of Landrace pigs at birth and at three weeks by using multitrait analyses for 2,787 litters.
Ederson Gomes Camargo   +4 more
doaj   +1 more source

Phenotypic robustness can increase phenotypic variability after non-genetic perturbations in gene regulatory circuits [PDF]

open access: yes, 2010
Non-genetic perturbations, such as environmental change or developmental noise, can induce novel phenotypes. If an induced phenotype confers a fitness advantage, selection may promote its genetic stabilization. Non-genetic perturbations can thus initiate
Ancel   +73 more
core   +3 more sources

Using eQTL weights to improve power for genome-wide association studies: a genetic study of childhood asthma

open access: yesFrontiers in Genetics, 2013
Increasing evidence suggests that single nucleotide polymorphisms (SNPs) associated with complex traits are more likely to be expression quantitative trait loci (eQTLs).
Lin eLi   +10 more
doaj   +1 more source

Network-assisted analysis of GWAS data identifies a functionally-relevant gene module for childhood-onset asthma

open access: yesScientific Reports, 2017
The number of genetic factors associated with asthma remains limited. To identify new genes with an undetected individual effect but collectively influencing asthma risk, we conducted a network-assisted analysis that integrates outcomes of genome-wide ...
Y. Liu   +11 more
doaj   +1 more source

Reduced Neuronal Transcription of Escargot, the Drosophila Gene Encoding a Snail-Type Transcription Factor, Promotes Longevity

open access: yesFrontiers in Genetics, 2018
In recent years, several genes involved in complex neuron specification networks have been shown to control life span. However, information on these genes is scattered, and studies to discover new neuronal genes and gene cascades contributing to life ...
Alexander V. Symonenko   +5 more
doaj   +1 more source

Genetic Variation of Leafhopper, Nephotettix Virescens Distant Active Transmitters From Endemic and Non Endemic Areas of Rice Tungro Disease Based on RAPD Marker [PDF]

open access: yes, 2014
Genetic variation of leafhopper, Nephotettix virescens Distant active transmitters from endemic and non endemic areas of rice tungro disease based on RAPD marker. Leafhopper, Nephotettix virescens Distant (Hemiptera: Cicadellidae) plays an important role
Supriyadi, S. (Supriyadi)   +1 more
core   +1 more source

Genetic variability for vigor and yield of robusta coffee (Coffea canephora) clones in Ghana

open access: yesHeliyon, 2022
Effectiveness of plant improvement programs, especially in perennial crops like coffee, may be improved by knowing the level of genetic variation which exist within a breeding population coupled with the knowledge of estimates of genetic parameters for ...
Abraham Akpertey   +3 more
doaj   +1 more source

Distribution of genetic diversity in wild European populations of prickly lettuce (Lactuca serriola): implications for plant genetic resources management [PDF]

open access: yes, 2010
Genetic variation in Lactuca serriola, the closest wild relative of cultivated lettuce, was studied across Europe from the Czech Republic to the United Kingdom, using three molecular marker systems, simple sequence repeat (SSR, microsatellites), AFLP and
Dehmer, K.J.   +5 more
core   +2 more sources

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