A5078386305- Plant Molecular Biology Research
- Plant Reproductive Biology
- Plant nutrient uptake and metabolism
- Plant biochemistry and biosynthesis
- Plant Gene Expression Analysis
- Plant responses to water stress
- Photosynthetic Processes and Mechanisms
- Chromosomal and Genetic Variations
- Legume Nitrogen Fixing Symbiosis
- Plant Taxonomy and Phylogenetics
University of Arizona
2019-2023
Plant (United States)
2023
Abstract Twenty-four-nucleotide (nt) small interfering RNAs (siRNAs) maintain asymmetric DNA methylation at thousands of euchromatic transposable elements in plant genomes a process called RNA-directed (RdDM). RdDM is dispensable for growth and development Arabidopsis thaliana, but required reproduction other plants, such as Brassica rapa. The 24-nt siRNAs are abundant maternal reproductive tissue, due largely to overwhelming expression from few loci the ovule developing seed coat, termed...
Abstract In plants, de novo DNA methylation is guided by 24-nt short interfering (si)RNAs in a process called RNA-directed (RdDM). Primarily targeted at transposons, RdDM causes transcriptional silencing and can indirectly influence expression of neighboring genes. During reproduction, small number siRNA loci are dramatically upregulated the maternally derived seed coat, suggesting that might have special function during reproduction. However, developmental consequence has been difficult to...
Abstract Locules are the seed‐bearing structure of fruits. Multiple locules associated with increased fruit size and seed set, therefore, control locule number is an important agronomic trait. Locule controlled in part by CLAVATA‐WUSCHEL pathway. Disruption either CLAVATA1 receptor‐like kinase or its ligand CLAVATA3 can cause larger floral meristems locules. In EMS mutagenized population Brassica rapa , we identified a mutant allele that raises from four to range six eight. Linkage mapping...
Abstract In plants, de novo DNA methylation is guided by 24-nt short interfering (si)RNAs in a process called RNA-directed (RdDM). Primarily targeted at transposons, RdDM causes transcriptional silencing and can indirectly influence expression of neighboring genes. During reproduction, small number siRNA loci are dramatically upregulated the maternally-derived seed coat, suggesting that might have special function during reproduction. However, developmental consequence has been difficult to...
ABSTRACT 24-nt small interfering siRNAs maintain asymmetric DNA methylation at thousands of euchromatic transposable elements in plant genomes a process call RNA-directed Methylation (RdDM). RdDM is dispensable for growth and development Arabidopsis, but required reproduction other species, such as Brassica rapa. are particularly abundant maternal reproductive tissue, due largely to overwhelming expression from number loci the ovule developing seed coat, termed siren loci. Recently it was...
Abstract Locules are the seed-bearing structure of fruits. Multiple locules associated with increased fruit size and seed set, therefore control locule number is an important agronomic trait. Locule controlled in part by CLAVATA-WUSCHEL pathway. Disruption either CLAVATA1 receptor-like kinase or its ligand CLAVATA3 can cause larger floral meristems locules. In EMS mutagenized population Brassica rapa , we identified a mutant allele that raises from 4 to range 6 8. Linkage mapping genetic...
Petal color is an important trait for both ornamental purposes and also attracting pollinators. Here, we report a mutation of Brassica rapa R-o-18 with pale yellow petals that retrieved from EMS population named whiter shade ( wsp ). Phenotypic segregation ratio F2 mapping indicates the phenotype controlled by single recessive gene. Mapping data whole genome sequencing coupled allele frequency analysis suggests located in ~2 Mbp interval on chromosome 2. The contains putative...
Abstract Petal color is an important trait for both ornamental purposes and also attracting pollinators. Here, we report a mutation of Brassica rapa R-o-18 with pale yellow petals that retrieved from EMS population named whiter shade ( wsp ). Phenotypic segregation ratio F2 mapping indicates the phenotype controlled by single recessive gene. Mapping data whole genome sequencing coupled allele frequency analysis suggests located in ∼2 Mbp interval on chromosome 2. The contains putative...