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Your search keyword '"Paudel, Dev"' showing total 12 results
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12 results on '"Paudel, Dev"'

4. Transcriptome analysis of Lantana camara flower petals reveals candidate anthocyanin biosynthesis genes mediating red flower color development.

Author

Parrish, Stephen Brooks, Paudel, Dev, and Deng, Zhanao

Subjects
*LANTANA camara, *FLOWER petals, *ANTHOCYANINS, *FLOWER development, *COLOR of plants, *ORNAMENTAL plants
Abstract

Flower color plays a crucial role in the appeal and selection of ornamental plants, directly influencing breeding strategies and the broader horticulture industry. Lantana camara , a widely favored flowering shrub, presents a rich palette of flower colors. Yet, the intricate molecular mechanisms governing this color variation in the species have remained largely unidentified. With the aim of filling this gap, this study embarked on a comprehensive de novo transcriptome assembly and differential gene expression analysis across 3 distinct lantana accessions, each showcasing a unique flower color. By harnessing the capabilities of both PacBio and Illumina sequencing platforms, a robust transcriptome assembly, encompassing 123,492 gene clusters and boasting 94.2% BUSCO completeness, was developed. The differential expression analysis unveiled 72,862 unique gene clusters that exhibited varied expression across different flower stages. A pronounced upregulation of 8 candidate core anthocyanin biosynthesis genes in the red-flowered accession was uncovered. This was further complemented by an upregulation of candidate MYB75 (PAP1) and bHLH42 (TT8) transcription factors. A candidate carotenoid cleavage dioxygenase (CCD4a) gene cluster also manifested a marked upregulation in white flowers. The study unveils the molecular groundwork of lantana's flower color variation, offering insights for future research and potential applications in breeding ornamental plants with desired color traits. [ABSTRACT FROM AUTHOR]

Published
2024
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9. Advances in Genomics Approaches Shed Light on Crop Domestication

Author

Zhao, Yang, primary, Feng, Mengfan, additional, Paudel, Dev, additional, Islam, Tofazzal, additional, Momotaz, Aliya, additional, Luo, Ziliang, additional, Zhao, Zifan, additional, Wei, Ni, additional, Li, Sicheng, additional, Xia, Qing, additional, Kuang, Bowen, additional, Yang, Xiping, additional, and Wang, Jianping, additional

Published
2021
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11. Phenotypic diversity for phenological and agronomic traits in the UC‐Riverside cowpea (Vigna unguiculata L. Walp) mini‐core collection

Author

Dareus, Rocheteau, primary, Acharya, Janam P., additional, Paudel, Dev R., additional, Lopes De Souza, Cleber Henrique, additional, Tome Gouveia, Beatriz, additional, Chase, Carlene A., additional, DiGennaro, Peter, additional, Mulvaney, Michael J., additional, Koenig, Rosalie, additional, and Rios, Esteban F., additional

Published
2021
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12. Phenotypic diversity for phenological and agronomic traits in the UC‐Riverside cowpea (Vigna unguiculataL. Walp) mini‐core collection

Author

Dareus, Rocheteau, Acharya, Janam P., Paudel, Dev R., Lopes De Souza, Cleber Henrique, Tome Gouveia, Beatriz, Chase, Carlene A., DiGennaro, Peter, Mulvaney, Michael J., Koenig, Rosalie, and Rios, Esteban F.

Abstract

Cowpea (Vigna unguiculataL. Walp) is a multipurpose crop widely cultivated in tropical and subtropical regions around the world. Characterizing cowpea phenotypes in germplasm collections is a crucial step to ensure future breeding efforts in the species. In this study, we estimated variance components and calculated genetic parameters for eight traits in 292 accessions from the University of California Riverside cowpea mini‐core collection, along with three lines released by the USDA, and seven cultivars. Broad‐sense heritability (H2) ranged from .21 to .83 for all accessions evaluated in Year 1, and from .16 to .83 for traits evaluated in 100 accessions during Year 2. Genotype × year correlations ranged from .45 to .99, illustrating consistency in phenotypic performance for some traits. Positive trait correlations were estimated for plant height and days to flowering, biomass at flowering (R1), and biomass at pod maturity (R6). Biomass at R1 and R6 were highly positively correlated. The USDA line US‐1137 showed high biomass production and can be used as forage and cover crop, whereas US‐1136, US 1138, and the cultivar Iron Clay showed superior traits as dual‐purpose (grain and/or fodder). Several accessions from the mini‐core outperformed cultivars and represent valuable genetic resources that can contribute to cowpea improvement. Moreover, these results showed that multiyear and/or multienvironment studies are needed to reliable select improved germplasm for agronomic traits. This study will provide cowpea breeders and geneticists with valuable phenotypic data to start new breeding efforts, and/or opportunities for gene discovery for key phenological and agronomic traits. The UC‐Riverside mini‐core cowpea collection was phenotyped in Florida.Genetic parameters revealed large phenotypic diversity in this germplasm.Grain, forage, and multipurpose types were identified and selected.Accessions showed greater diversity than cowpea cultivars.The collection holds broad genetic diversity to improve cowpea productivity.

Published
2021
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