نتایج جستجو برای: genotype selection
تعداد نتایج: 402494 فیلتر نتایج به سال:
Sexual selection is measured between two strains of Drosophila melanogaster: a wild strain and a strain mutant at the sepia locus. Frequency-dependent male mating was found to successful, whereas the female genotype exerted no influence. The rarer the male genotype becomes, the greater is its mating success. A selection model is build for this behavior characteristic in which selection operates...
As a result of the hybridization ?Sevgi? and ?Ka?ka? cultivars with ?Fortuna? cultivar, which are bred within Cukurova University, superior characteristic strawberry genotypes codes ?33?, ?36? ?61? were selected. In this study, these three commonly grown in Mediterranean region compared terms yield, fruit size taste determining parameters (sugar organic acids) at different harvest date monthly ...
The Canal Point (CP) sugarcane (Saccharum spp.) breeding program has developed highyielding cultivars for the organic soils of South Florida, but cultivar development has not been as successful for sand soils in this region. Our objectives were to improve fi nal-stage (Stage 4) selection effi ciency of this program by assessing interactions among genotypes, soils, and locations and other source...
The recent dramatic cost reduction of next-generation sequencing technology enables investigators to assess most variants in the human genome to identify risk variants for complex diseases. However, sequencing large samples remains very expensive. For a study sample with existing genotype data, such as array data from genome-wide association studies, a cost-effective approach is to sequence a s...
The linkage disequilibrium structure of the human genome allows identification of small sets of single nucleotide polymorphisms (SNPs) (tSNPs) that efficiently represent dense sets of markers. This structure can be translated into linear algebraic terms as evidenced by the well documented principal components analysis (PCA)-based methods. Here we apply, for the first time, PCA-based methodology...
Local transmission of chikungunya virus (CHIKV) was first detected in the Americas in December 2013, after which it spread rapidly throughout the Caribbean islands and American mainland, causing a major chikungunya fever epidemic. Previous phylogenetic analysis of CHIKV from a limited number of countries in the Americas suggests that an Asian genotype strain was responsible, except in Brazil wh...
The objectives of this study were to analyze genotype by environment (GE) interactions effects on the yield of barley lines and varieties, identifying salinity tolerant genotypes with stable yield and also evaluating genotype (G), environments (E) and GE interactions using different stability parameters. The research was set up as two Randomized Complete Block design with three replications at ...
Guava is one of the most important commercial fruit crop in Bangladesh due to its high nutrient value, good taste and high health benefits. This study was conducted to investigate the flowering, fruiting behavior and nutritional quality of guava genotype suitable for coastal region of Bangladesh. Fifteen genotypes (PG 01 to PG 15) having satisfactory growth were selected for this study. One bra...
For two genotypes that have the same mean number of offspring but differ in the variance in offspring number, natural selection will favor the genotype with lower vari− ance. The concept of fitness becomes cloudy under these conditions because the out− come of evolution is not deterministic. However, the effect of variance in offspring number on the fixation probability of mutant strategies has...
1 Summary DNA from 57 generation-28 boars that had sired progeny in the NE selection and control lines was submitted to GeneSeek Inc., where genotypes for eight Single Nucleotide Polymorphic Markers (SNPs) affecting economic traits in pigs were determined. Three markers are reported to be associated with growth and composition of growth, three with meat quality, and two with number of live pigs...
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