A5012292902- Peanut Plant Research Studies
- Agricultural pest management studies
- Coconut Research and Applications
- Research in Cotton Cultivation
- Legume Nitrogen Fixing Symbiosis
- Plant Disease Resistance and Genetics
- Plant Virus Research Studies
- Food Allergy and Anaphylaxis Research
- Soybean genetics and cultivation
- Allergic Rhinitis and Sensitization
- Lipid metabolism and biosynthesis
- Nitrogen and Sulfur Effects on Brassica
- Plant and Fungal Interactions Research
- Viral gastroenteritis research and epidemiology
- Postharvest Quality and Shelf Life Management
- CRISPR and Genetic Engineering
- Horticultural and Viticultural Research
- Enterobacteriaceae and Cronobacter Research
- Eosinophilic Esophagitis
- Plant Surface Properties and Treatments
- Molecular Biology Techniques and Applications
- Nuts composition and effects
- Genetic and Environmental Crop Studies
- Plant Reproductive Biology
- Plant Genetic and Mutation Studies
Agricultural Research Organization
2015-2024
Ministry of Agriculture and Rural Development
2016-2024
Iowa State University
2007-2009
Hebrew University of Jerusalem
1999-2003
The Gossypium genus is used to investigate emergent consequences of polyploidy in cotton species; comparative genomic analyses reveal a complex evolutionary history including interactions among subgenomes that result genetic novelty elite cottons and provide insight into the evolution spinnable fibres. A phylogenetic study plants provides insights role angiosperm evolution, specifically, emergence fibres domesticated cottons. authors show an abrupt five- sixfold ploidy increase about 60...
Polyploidy is an important driver of eukaryotic evolution, evident in many animals, fungi, and plants. One consequence polyploidy subfunctionalization, which the ancestral expression profile becomes partitioned among duplicated genes (termed homoeologs). Subfunctionalization appears to be a common phenomenon insofar as it has been studied, at scale organs. Here, we use high-resolution methodology investigate thousands pairs homoeologs during development single plant cell, using model seed...
Peanut (Arachis hypogaea; 2n = 4x 40) is a nutritious food and good source of vitamins, minerals, healthy fats. Expansion genetic genomic resources for enhancement cultivated peanut has gained momentum from the sequenced genomes diploid ancestors peanut. To facilitate high-throughput genotyping Arachis species, 20 genotypes were re-sequenced genome-wide single nucleotide polymorphisms (SNPs) selected to develop large-scale SNP array. For flexibility in applications, SNPs polymorphic between...
A central question in evolutionary biology concerns the developmental processes by which new phenotypes arise. An exceptional example of innovation is single-celled seed trichome Gossypium (“cotton fiber”). We have used fiber development as a system to understand how morphology can rapidly evolve. Fiber has undergone considerable morphological changes between short, tightly adherent fibers G. longicalyx and derived long, spinnable its closest relative, herbaceum, facilitated cotton...
Abstract Background Understanding the evolutionary genetics of modern crop phenotypes has a dual relevance to biology and improvement. Modern upland cotton ( Gossypium hirsutum L.) was developed following thousands years artificial selection from wild form, G. var. yucatanense , which bears shorter, sparser, layer single-celled, ovular trichomes ('fibre'). In order gain an insight into nature developmental genetic transformations that accompanied domestication improvement, we studied...
Global warming is predicted to have a negative effect on plant growth due the damaging of high temperatures. In order address temperature environments olive oil yield and quality, we compared its fruit development five cultivars placed in region noted for summer temperatures, with trees same relatively mild summers. We found that effects environment are genotype dependent general, temperatures during affected three important traits: weight, concentration quality. None tested exhibited...
Abstract Background Reactive oxygen species (ROS) play a prominent role in signal transduction and cellular homeostasis plants. However, imbalances between generation elimination of ROS can give rise to oxidative stress growing cells. Because are important cell growth, modulation could be responsive natural or human-mediated selection pressure To study the evolution related genes single plant cell, we conducted comparative expression profiling analyses elongated seed trichomes ("fibers")...
SUMMARY Gossypium barbadense is widely cultivated because of its extra‐long staple cotton with superior luster, silkiness and high yield. These economically important traits were selected during initial domestication an agronomically inferior wild ancestor, followed by millennia human‐mediated selection. To reveal the effects this history on fiber transcriptome, we conducted comparative expression profiling mechanically isolated cells at three different stages encompassing early, mid, late...
Water availability is a major yield-limiting factor in semi-arid regions. Hence, efficient utilization of soil water for grain production depends on correct timing flowering. Following winter (December-January) sowing, modern Israeli chickpea (Cicer arietinum L.) cultivars begin flowering during the last week March and their reproductive period extends throughout April to June. In Middle East, April, May, June are often dry hot months. The objectives this study were (i) assess potential...
One of the most intriguing phenomena fleshy fruit is ability to maintain high water content at maturity, even following harvest. This accomplished by a cuticle that highly impermeable diffusion. In this paper, we report on novel genotype tomato, developed via introgression from wild species Solanum habrochaites, which characterized microfissuring and dehydration mature fruit. The microfissure/dehydration phenotype inherited as single gene, termed Cwp1 (cuticular permeability). gene was fine...
A putative advantage of allopolyploidy is the possibility differential selection duplicated (homeologous) genes originating from two different progenitor genomes. In this note we explore hypothesis using a high throughput, SNP-specific microarray technology applied to seed trichomes (cotton) harvested three developmental time points in wild and modern accessions independently domesticated cotton species, Gossypium hirsutum G. barbadense. We show that homeolog expression ratios are dynamic...
The cotton genus (Gossypium) provides a superior system for the study of diversification, genome evolution, polyploidization, and human-mediated selection. To gain insight into phenotypic diversification in seeds, we conducted coexpression network analysis developing seeds from diploid allopolyploid species explored properties. Key modules functional associations were identified related to seed oil content weight. We compared species-specific networks reveal topological changes, including...
The growth habit of lateral shoots (also termed "branching habit") is an important descriptive and agronomic character peanut. Yet, both the inheritance branching genetic mechanism that controls it in this crop remain unclear. In addition, low degree polymorphism among cultivated peanut varieties hinders fine-mapping other traits non-homozygous structures. Here, we combined high-throughput sequencing with a well-defined system to study these issues Initially, segregating F2 populations...
Although seed and pod traits are important for peanut breeding, little is known about the inheritance of these traits. A recombinant inbred line (RIL) population 156 lines from a cross Tifrunner x NC 3033 was genotyped with Axiom_Arachis1 SNP array SSRs to generate genetic map composed 1524 markers in 29 linkage groups (LG). The positions were compared their physical on genome confirm validity explore distribution recombination potential chromosomal rearrangements. This then used identify...
Cotton ranks among the world's important oilseed crops, yet relative to other oilseeds there are few studies of oil-related biosynthetic and regulatory pathways. We present global transcriptome analyses cotton seed development using RNA-seq four developmental time-points. Because Upland (Gossypium hirsutum L.) is an allopolyploid containing two genomes (A/D), we partitioned expression into individual contributions each homeologous gene copy. Data were explored with respect genic subgenomic...
Microarrays offer a powerful tool for diverse applications plant biology and crop improvement. Recently, two comprehensive assemblies of cotton ESTs were constructed based on three Gossypium species. Using these as templates, we describe the design creation publicly available oligonucleotide array cotton, useful all four cultivated Synthetic probes generated from exemplar sequences global assembly 211,397 derived >50 different cDNA libraries representing many tissue types treatments. A total...
Abstract Real-time qPCR is currently the most sensitive technique available for detection of low-level mRNA expression. For more reliable and precise gene expression analyses, real-time PCR data a sequence interest must be normalized against that control gene, which uniformly expressed in various tissues during different phases development. So far, suitable internal controls studies peanut have not been identified. We assessed 10 frequently used housekeeping genes, specifically ubq10, gapdh,...
Climate change has been shown to have a substantial impact on agriculture and high temperatures heat stress are known many negative effects the vegetative reproductive phases of plants. In previous study, we addressed temperature environments olive oil yield quality, by comparing fruit development accumulation quality five cultivars placed in moderate environments. The aim current study was explore molecular mechanism resulting effect environment quantity quality. We analyzed transcriptome...
Abstract The effect of the major flowering gene ( PPD ) on seed weight chickpea was studied 450 F 3 families from reciprocal crosses between a small‐seeded, early‐flowering PPD/PPD type and large‐seeded, late cultivar. 4 progeny tests were carried out to determine genotypes each individual . effects polygenes mean both significant. Genetic correlations time positive relatively high, suggesting that in certain genetic backgrounds it might be difficult breed cultivars without compromising weight.
Pod constriction is an important descriptive and agronomic trait of peanut. For the in-shell Virginia marketing-type, this has commercial importance as well, since deeply constricted pods have a tendency to break, which makes them unmarketable. Classical genetic studies indicated that pod in peanut controlled by one four genes, depending on background. In all those studies, was evaluated visually opposed quantitatively. Here, we examined nature Virginia-type Our study involved 195...