The availability of information on the genetic diversity and population structure in wheat (Triticum aestivum L.) breeding lines will help breeders to better use their resources manage variation program. recent advances sequencing technology provide opportunity identify tens or hundreds thousands single nucleotide polymorphism (SNPs) large genome species (e.g., wheat). These SNPs can be utilized for understanding performing wide association studies (GWAS) complex traits. In this study, were...

Abstract Background Improving grain yield in cereals especially wheat is a main objective for plant breeders. One of the constrains improving this trait G × E interaction (GEI) which affects performance genotypes different environments. Selecting high yielding that can be used target set environments needed. Phenotypic selection misleading due to environmental conditions. Incorporating information from phenotypic and genomic analyses useful selecting higher group Results A 270 F 3:6 Nebraska...

To date, very little research on drought tolerance has been conducted at the seedling stage in winter wheat. In this study, two types of traits, namely and recovery associated with were scored biparental mapping population (BPP) association (A-set). The results study revealed no or weak significant correlation between traits. Based GWAS QTL analyses, all QTLs traits completely different from those except one each that was found to be trait trait. analysis SNP gene networks confirmed combined...

Drought has a significant impact on rice yield by restricting the crop's ability to grow and develop. Producing cultivars adapted water deficit conditions is still main interest of breeders geneticists. To address this challenge, set 413 highly diverse populations were evaluated under normal for two growing seasons 2021 2022. High genetic variation was found among genotypes all studied traits. The heritability estimates ranged from 0.82 (panicle length) 0.95 (plant height). Sterility...

Apomixis is a horticultural trait that enables clonal propagation of hybrids by producing asexual embryos from maternal cells in the ovule without meiosis. Many mango cultivars exhibit apomictic polyembryony, where one embryo develops zygotic tissues and rest nucellar tissues, resulting seedlings are genetically identical to mother tree. In Mangifera indica L. commercially important rootstocks raised seeds, which then grafted with desired cultivars. Identifying molecular markers for...

Mangoes (Mangifera indica L.) are a widely grown fruit tree crop across the world, but breeding new varieties can take 15-20 years due to its long juvenile period and high heterozygosity. Marker-assisted selection accelerate mango cultivars with desirable traits for quality, storage, horticulture, pest disease resistance, nutrition. To achieve this, genome-wide association study (GWAS) was conducted discover molecular markers 14 morphometric economically important of 161 accessions diverse...

Wheat (Triticum aestivum L.) is one of the most important crops in world. Four spike-related traits, namely, spike weight (SW), length (SL), total number spikelets per (TSNS), kernels (TKNS), and thousand-kernel (TKW), were evaluated 270 F3:6 Nebraska winter wheat lines two environments (Lincoln North Platte, NE, USA). All genotypes both locations exhibited high genetic variation for all yield traits. High positive correlations observed among yield-related traits each location separately. No...

Due to the advances in DNA markers, kompetitive allele-specific PCR (KASP) markers could accelerate breeding programs and genetically improve drought tolerance. Two previously reported KASP TaDreb-B1 1-FEH w3, were investigated this study for marker-assisted selection (MAS) of highly diverse spring winter wheat populations genotyped using these two markers. The same evaluated tolerance at seedling (drought stress) reproductive (normal growth stages. single-marker analysis revealed a high...

Introduction Avocado ( Persea americana ) is a highly nutritious fruit gaining worldwide popularity. However, its cultivation currently reliant on limited number of cultivars with restricted genetic diversity. This study aims to investigate the diversity and population structure avocado germplasm identify loci associated key quality traits that influence customer preference. Methods A panel 110 accessions was analyzed using 4,706 high-quality single nucleotide polymorphisms (SNPs). Genetic...

Wheat stripe rust (caused by Puccinia striiformis f. sp. tritici) is a major disease that damages wheat plants and affects yield all over the world. In recent years, became problem in Egypt. New races appeared caused breakdowns resistant genotypes. To improve resistance Egyptian genotypes, new sources of are urgently needed. research, set 95 genotypes collected from 19 countries, including Egypt, were evaluated for their against race(s) under field conditions two growing seasons 2018/2019...

Abstract Background and aims Pb Sn concentration increase rapidly due to the industrial revolution cause a significant reduction in wheat production productivity. Understanding genetic control of tolerance is very important produce cultivars that are tolerant such metals. Methods Extensive analyses using genome-wide association study, functional annotation, gene enrichment were investigated set 103 highly diverse spring genotypes. Kernel traits as kernel length (KL), diameter (KD), width...

Stem rust caused by Puccinia graminis f. sp. tritici Eriks. is an important disease of common wheat globally. The production and cultivation genetically resistant cultivars are one the most successful environmentally friendly ways to protect against fungal pathogens. Seedling screening genome-wide association study (GWAS) were used determine genetic diversity genotypes obtained on stem resistance loci. At seedling stage, reaction race QFCSC in Nebraska was measured a set 212 from F3:6 lines....

Avocado, a fruit crop renowned for its high nutritional value, has seen steadily increasing market demand. However, breeding efforts avocados have lagged those other commercial fruits due to limited genomic research and germplasm resources. To address this shortfall, genome-wide association study was conducted on 122 avocado accessions from the United States Department of Agriculture (USDA) Agricultural Research Service (ARS) Subtropical Horticultural Station (SHRS) collection. The aimed...

Barley (Hordeum vulgare L.) thrives in the arid and semi-arid regions of world; nevertheless, it suffers large grain yield losses due to drought stress. A panel 426 lines barley was evaluated Egypt under deficit (DI) full irrigation (FI) during 2019 2020 growing seasons. Observations were recorded on number days flowering (NDF), total chlorophyll content (CH), canopy temperature (CAN), filling duration (GFD), plant height (PH), (Yield) DI FI. The genotyped using 9K Infinium iSelect single...

Frost is an abiotic stress factor that threatens plant development and crop productivity not only in cold regions but also temperate zones. Roots play important role growth during frost stress. Therefore, variation root characteristics could be studied to improve tolerance winter faba bean. The present study aimed identify the genomic control a bean population by focusing on root-related traits. A set of 185 genotypes were tested for under artificial conditions at -16°C, -18°C, -19°C...