Mostrando ítems 11-20 de 179
Core Hunter: an algorithm for sampling genetic resources based on multiple genetic measures
BACKGROUND: Existing algorithms and methods for forming diverse core subsets currently address either allele representativeness (breeder's preference) or allele richness (taxonomist's preference). The main objective of ...
Hierarchical multiple-factor analysis for classifying genotypes based on phenotypic and genetic data
A numerical classification problem encountered by breeders and gene-bank curators is how to partition the original heterogeneous population of genotypes into non-overlapping homogeneous subpopulations. The measure of ...
Predicting quantitative traits with regression models for dense molecular markers and pedigree
The availability of genomewide dense markers brings opportunities and challenges to breeding programs. An important question concerns the ways in which dense markers and pedigrees, together with phenotypic records, should ...
Experiment data maize lines
QTL mapping of grain length in rice (Oryza sativa L.) using chromosome segment substitution lines
Chromosome segment substitution (CSS) lines have the potential for use in QTL fine mapping and map-based cloning. The standard t-test used in the idealized case that each CSS line has a single segment from the donor parent ...
Structural equation modelling for studying genotype x environment interactions of physiological traits affecting yield in wheat
In plant physiology and breeding, it is important to understand the causes of genotyperenvironment interactions (GEIs) of complex traits such as grain yield. It is difficult to study the underlying sequential biological ...
Using factor analytic models for joining environments and genotypes without crossover genotype x environment interaction
Genotype x environment interaction variability can be due to crossover interaction (COI) or to non-COI. Statistical methods for detecting and quantifying COI and for forming subsets of environments and/or genotypes with ...
A molecular selection index method based on Eigenanalysis
The traditional molecular selection index (MSI) employed in marker-assisted selection maximizes the selection response by combining information on molecular markers linked to quantitative trait loci (QTL) and phenotypic ...
A restricted selection index method based on eigenanalysis
Selection indices, used in animal and plant breeding to select the best individuals for the next breeding cycle, are based on phenotypic observations of traits recorded in candidate individuals. The restrictive selection ...