A5039135515- Genetic Mapping and Diversity in Plants and Animals
- Genetics and Plant Breeding
- Genetic and phenotypic traits in livestock
- Wheat and Barley Genetics and Pathology
- Crop Yield and Soil Fertility
- Plant Micronutrient Interactions and Effects
- Rice Cultivation and Yield Improvement
- Plant Disease Resistance and Genetics
- Chromosomal and Genetic Variations
- Plant nutrient uptake and metabolism
- Plant Virus Research Studies
- Phytase and its Applications
- Antioxidant Activity and Oxidative Stress
- Food composition and properties
- Plant Reproductive Biology
- Plant Pathogens and Fungal Diseases
- Plant Stress Responses and Tolerance
- Plant Physiology and Cultivation Studies
- Aluminum toxicity and tolerance in plants and animals
- Insect Resistance and Genetics
- Plant Molecular Biology Research
- Plant-Microbe Interactions and Immunity
- Genetic diversity and population structure
- Photosynthetic Processes and Mechanisms
- Plant Pathogens and Resistance
Corteva (United States)
2025
Centro Internacional de Mejoramiento de Maíz Y Trigo
2010-2022
International Maize and Wheat Improvement Center
2013-2021
International Crops Research Institute for the Semi-Arid Tropics
2013-2021
International Crops Research Institute for the Semi-Arid Tropics
2014
CGIAR
2009
Vivekananda Parvatiya Krishi Anusandhan Sansthan
2006
Genomic selection (GS) has been implemented in animal and plant species, is regarded as a useful tool for accelerating genetic gains. Varying levels of genomic prediction accuracy have obtained plants, depending on the problem assessed several other factors, such trait heritability, relationship between individuals to be predicted those used train models prediction, number markers, sample size genotype × environment interaction (GE). The main objective this article describe results...
ABSTRACT Genomic selection incorporates all the available marker information into a model to predict genetic values of breeding progenies for selection. The objective this study was estimate gains in grain yield from genomic (GS) eight bi‐parental maize populations under managed drought stress environments. In each population, 148 300 F 2:3 (C 0 ) were derived and crossed single‐cross tester complementary heterotic group. resulting testcrosses population evaluated two four three well‐watered...
Abstract Genotyping-by-sequencing (GBS) technologies have proven capacity for delivering large numbers of marker genotypes with potentially less ascertainment bias than standard single nucleotide polymorphism (SNP) arrays. Therefore, GBS has become an attractive alternative technology genomic selection. However, the use data poses important challenges, and accuracy prediction using is currently undergoing investigation in several crops, including maize, wheat, cassava. The main objective...
ABSTRACT Genomic selection offers great potential for increasing the rate of genetic improvement in plant breeding programs. This research used simulation to evaluate effectiveness different strategies genotyping and phenotyping enable genomic early generation individuals (e.g., F 2 ) programs involving biparental or similar backcross top cross) populations. By using phenotypes that were previously collected other populations, decisions could be made without waiting pertain directly...
One of the most important applications genomic selection in maize breeding is to predict and identify best untested lines from biparental populations, when training validation sets are derived same cross. Nineteen tropical populations evaluated multienvironment trials were used this study assess prediction accuracy different quantitative traits using low-density (~200 markers) genotyping-by-sequencing (GBS) single-nucleotide polymorphisms (SNPs), respectively. An extension Genomic Best...
The availability of high density panels molecular markers has prompted the adoption genomic selection (GS) methods in animal and plant breeding. In GS, parametric, semi-parametric non-parametric regressions models are used for predicting quantitative traits. This article shows how to use neural networks with radial basis functions (RBFs) prediction dense markers. We illustrate linear Bayesian LASSO regression model two non-linear models, reproducing kernel Hilbert spaces (RKHS) function...
Vitamin A deficiency (VAD) compromises immune function and is the leading cause of preventable blindness in children many developing countries. Biofortification, or breeding staple food crops that are rich micronutrients, provides a sustainable way to fight VAD other micronutrient malnutrition problems. Polymorphisms, with associated molecular markers, have recently been identified for two loci, LcyE (lycopene epsilon cyclase) CrtRB1 (β-carotene hydroxylase 1) govern critical steps...
Haploids and doubled haploid (DH) inbred lines have become an invaluable tool for maize genetic research hybrid breeding, but the basis of in vivo induction maternal haploids is still unknown. This first study reporting comparative quantitative trait locus (QTL) analyses this maize. We determined rates (HIR) testcrosses a total 1061 progenies four segregating populations involving two temperate inducers, UH400 (HIR = 8%) CAUHOI 2%), one tropical inbreds with HIR 0%, up to three generations...
Genome-wide association analysis in tropical and subtropical maize germplasm revealed that MLND resistance is influenced by multiple genomic regions with small to medium effects. The lethal necrosis disease (MLND) caused synergistic interaction of Maize chlorotic mottle virus Sugarcane mosaic virus, has emerged as a serious threat production eastern Africa since 2011. Our objective was gain insights into the genetic architecture underlying genome-wide study (GWAS) selection. We used two...
ABSTRACT Genomic selection and association mapping offer great potential to increase rates of genetic progress in plants. The prediction genomic breeding values usually requires that missing genotypes be imputed because a proportion is uncalled by the genotyping algorithm, different individuals may genotyped using platforms, or low cost strategies can involve some at high density others density. objective this paper was quantify accuracy imputation maize ( Zea mays L.) data set explore...
Genome-wide association analysis in CIMMYT's panel revealed new favorable native genomic variations in/nearby important genes such as hydroxylases and CCD1 that have potential for carotenoid biofortification maize. studies (GWAS) been used extensively to identify allelic variation controlling agronomic nutritional traits plants. Provitamin A (proVA) enhancing alleles of lycopene epsilon cyclase (LCYE) β-carotene hydroxylase 1 (CRTRB1), previously identified through candidate-gene based GWAS,...
Drought stress is recognized as a major constraint to maize yield production, the heat alone and in combination with drought are likely become increasing constraints. The association mapping genomic prediction analyses were conducted collection of 300 tropical subtropical inbred lines reveal genetic architecture grain flowering time under well-watered, stress, combined conditions. Out 381,165 genotyping-by-sequencing SNPs, 1661 significantly associated all 12 trait-environment combinations,...
Molecular characterization information on genetic diversity, population structure and relationships provided by this research will help maize breeders to better understand how utilize the current CML collection. CIMMYT inbred lines (CMLs) have been widely used all over world contributed greatly both tropical temperate improvement. Genetic diversity of collection six were assessed among determined with genotyping-by-sequencing SNPs. Results indicated that: (1) wider distance low kinship...
Genome-wide association study (GWAS) on 923 maize lines and validation in bi-parental populations identified significant genomic regions for kernel-Zinc and-Iron maize. Bio-fortification of with elevated Zinc (Zn) Iron (Fe) holds considerable promise alleviating under-nutrition among the world's poor. through molecular breeding could be an economical strategy developing nutritious maize, hence this study, we adopted GWAS to identify markers associated high kernel-Zn Fe subsequently validated...
To increase genetic gain for tolerance to drought, we aimed identify environmentally stable QTL in per se and testcross combination under well-watered (WW) drought stressed (DS) conditions evaluate the possible deployment of using marker assisted and/or genomic selection (QTL/GS-MAS). A total 169 doubled haploid lines derived from cross between CML495 LPSC7F64 190 testcrosses (tester CML494) were evaluated a 11 treatment-by-population combinations WW DS conditions. In response DS, grain...
More than 80% of the 19 million ha maize ( L.) in tropical Asia is rainfed and prone to drought. The breeding methods for improving drought tolerance (DT), including genomic selection (GS), are geared increase frequency favorable alleles. Two biparental populations (CIMMYT-Asia Population 1 [CAP1] CAP2) were generated by crossing elite Asian-adapted yellow inbreds (CML470 VL1012767) with an African white drought-tolerant line, CML444. Marker effects polymorphic single-nucleotide...