Publications by authors named "Jana Jeevan Rameneni"
Article Synopsis
- * This study identified and characterized multiple B-box genes in specific plant species, revealing that segmental duplications significantly contributed to gene family expansion and classification into five subgroups.
- * Analysis of expression profiles showed that many B-box genes respond to various abiotic stresses and hormones, suggesting they may serve as valuable genetic markers for plant development and stress tolerance.
Clubroot caused by is a severe disease of cruciferous crops that decreases crop quality and productivity. Several clubroot resistance-related quantitative trait loci and candidate genes have been identified. However, the underlying regulatory mechanism, the interrelationships among genes, and how genes are regulated remain unexplored.
View Article and Find Full Text PDFLeaf senescence is a developmental process induced by various molecular and environmental stimuli that may affect crop yield. The dark-induced leaf senescence-91 (DLS-91) plants displayed rapid leaf senescence, dramatically decreased chlorophyll contents, low photochemical efficiencies, and upregulation of the senescence-associated marker gene . To understand DLS molecular mechanism, we examined transcriptomic changes in DLS-91 and control line DLS-42 following 0, 1, and 4 days of dark treatment (DDT) stages.
View Article and Find Full Text PDFNitrogen (N) deficiency is a main environmental factor that induces early senescence. Cotyledons provide an important N source during germination and early seedling development. In this study, we observed that N deficient condition enhanced gene expression involved in purine catabolism in cotyledons of Chinese cabbage ( ssp.
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- Research focused on the genetic inheritance of clubroot resistance in Brassicaceae crops, specifically analyzing a double haploid population from resistant (09CR500) and susceptible (09CR501) lines.
- The clubroot resistance in "09CR500" was determined to be controlled by a single dominant gene, showing nearly equal segregation between resistant and susceptible plants.
- A specific genetic marker ("09CR.11390652") was found to effectively distinguish resistant phenotypes, making it valuable for breeding programs and the development of resilient crop varieties.
Reddish purple Chinese cabbage (RPCC) is a popular variety of (AA = 20). It is rich in anthocyanins, which have many health benefits. We detected novel anthocyanins including cyanidin 3-(feruloyl) diglucoside-5-(malonoyl) glucoside and pelargonidin 3-(caffeoyl) diglucoside-5-(malonoyl) glucoside in RPCC.
View Article and Find Full Text PDFProtein post-translational modification by phosphorylation is essential for the activity and stability of proteins in higher plants and underlies their responses to diverse stimuli. There are more than 300 leucine-rich repeat receptor-like kinases (LRR-RLKs), a major group of receptor-like kinases (RLKs) that plays an important role in growth, development, and biotic stress responses in higher plants. To analyze auto- and transphosphorylation patterns and kinase activities in vitro, 43 full-length complementary DNA (cDNA) sequences were cloned from genes encoding LRR-RLKs.
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- Auxins play a crucial role in plant growth and development, affecting processes like leaf formation, root and fruit development, and phototropism, with particular focus on Aux/IAA genes as transcriptional repressors.
- A genome-wide analysis identified 55 Aux/IAA genes in Brassica rapa, revealing phylogenetic relationships with related species and showing that their expression patterns vary during different developmental stages.
- Findings on the structural differences and stress responses of BrIAA genes provide insights into their functions, contributing to the understanding of Brassica crop genomics and paving the way for future research in this area.
Identification of quantitative trait loci (QTLs) governing morphologically important traits enables to comprehend their potential genetic mechanisms in the genetic breeding program. In this study, we used 210 F2 populations derived from a cross between two radish inbred lines (Raphanus sativus) "835" and "B2," including 258 SSR markers were used to detect QTLs for 11 morphological traits that related to whole plant, leaf, and root yield in 3 years of replicated field test. Total 55 QTLs were detected which were distributed on each linkage group of the Raphanus genome.
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- Leucine-rich-repeat receptor-like kinases (LRR-RLKs) are crucial for plant growth, development, and stress responses, with a focus on their roles in the plant Brassica rapa.
- The study identified 303 LRR-RLKs in B. rapa and categorized them into 15 subfamilies by comparing them with similar kinases from other plants, revealing differences in their gene duplications and structural features.
- Biochemical analysis of selected genes suggested possible significant functions, particularly highlighting BrBAK1's strong activity in phosphorylation, indicating its potential involvement in plant growth and immune responses, similar to its counterpart in Arabidopsis.