A5082996773- Chromosomal and Genetic Variations
- Plant Virus Research Studies
- Plant Pathogens and Resistance
- Plant Disease Resistance and Genetics
- Research in Cotton Cultivation
- CRISPR and Genetic Engineering
- Plant tissue culture and regeneration
- Plant and Fungal Interactions Research
- Genomics and Phylogenetic Studies
- Genetic and Environmental Crop Studies
- Photosynthetic Processes and Mechanisms
- Genetic diversity and population structure
- Genetic Mapping and Diversity in Plants and Animals
- Plant-Microbe Interactions and Immunity
- Nitrogen and Sulfur Effects on Brassica
- Plant Reproductive Biology
- Agricultural Practices and Plant Genetics
Genetics and Improvement of Fruit and Vegetables
2013-2023
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2019-2023
University of California, Riverside
2023
Iowa State University
2012-2014
Institut de Génétique, Environnement et Protection des Plantes
2010-2013
Département Biologie et Amélioration des Plantes
2009-2011
Institut National de la Recherche Agronomique
2010-2011
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 promotes the restructuring of merged genomes within initial generations resynthesized Brassica napus, possibly caused by homoeologous recombination at meiosis. However, little is known about impact first confrontation two meiosis which could lead to genome exchanges in progeny. Here, we assessed role instability synthetic B. napus. We used three different newly napus plants and established meiotic pairing frequencies for A C genomes. genotyped corresponding progenies a cross...
Polyploidy is now recognized as a characteristic feature of all angiosperm genomes (Jiao et al., 2011), and remains an important speciation process today (Wendel, 2000; Comai, 2005; Doyle 2008; Leitch & Leitch, Soltis Soltis, 2009; 2010). In allopolyploids, genomic merger doubling are associated with myriad non-Mendelian interactions processes, including sequence elimination (Shaked 2001; Ozkan 2003; Han Skalicka Anssour Tate Jackson Chen, 2010), alterations epigenetic marks Madlung 2002;...
• Polyploids can be produced by the union of unreduced gametes or through somatic doubling F1 interspecific hybrids. The first route is suspected to produce allopolyploid species under natural conditions, whereas experimental data have only been thoroughly gathered for latter. We analyzed meiotic behavior an hybrid (by crossing Brassica oleracea and B. rapa, progenitors napus) extent which recombined homoeologous chromosomes were transmitted its progeny. These results then compared with...
Whole genome duplication (WGD) is widespread in flowering plants and a driving force angiosperm diversification. The redundancy introduced by WGD allows the evolution of novel gene interactions functions, although patterns processes diversification are poorly understood. We identified ∼2,000 pairs paralogous genes Gossypium raimondii (cotton) resulting from an approximately 60 My old 5- to 6-fold ploidy increase. Gene expression analyses revealed that, G. raimondii, 99.4% exhibit...
Summary Recombination is a major mechanism generating genetic diversity, but the control of crossover rate remains key question. In Brassica napus ( AACC , 2 n = 38), we can increase homologous recombination between A genomes in AAC hybrids. Hypotheses for this effect include number C univalent chromosomes, ratio univalents and bivalents and, finally, which chromosomes are univalents. To test these hypotheses, produced AA hybrids with zero, one, three, six or nine additional four different...
Summary In this study, we looked for genetic factors in the pepper ( Capsicum annuum ) germplasm that control number of potato virus Y (PVY) particles entering plant (i.e. effective population size at inoculation) and PVY accumulation systemic level census size). Using genotyping‐by‐sequencing (GBS) a core collection 256 accessions, obtained 10 307 single nucleotide polymorphisms (SNPs) covering whole genome. Genome‐wide association studies (GWAS) detected seven SNPs significantly associated...
Partial resistance in plants generally exerts a low selective pressure on pathogens, and thus ensuring their durability agrosystems. However, little is known about the effect of partial molecular mechanisms pathogenicity, knowledge that could advance plant breeding for sustainable health. Here we investigate gene expression Phytophthora capsici during infection pepper (Capsicum annuum L.), where only genetic reported, using Illumina RNA-seq. Comparison transcriptomes P. infecting susceptible...
The oomycete Phytophthora capsici is a common pathogen of the Solanaceae and Cucurbitaceae families. An improved assembly for reference isolate LT1534 was constructed using Oxford Nanopore Technologies Illumina data. Additionally, an unpolished produced European Pc285 collected on chili pepper reads.