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Your search keyword '"Zeng, Ningbo"' showing total 10 results
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10 results on '"Zeng, Ningbo"'

3. The Phenotypic Diversity of 232 Germplasm Accessions Identifies the Adverse Effects of Flowering Redundancy on Peanut Yield.

Author

Liu, Na, Liu, Dengwang, Tang, Kang, Lu, Xuankang, Tao, Yu, Yan, Xin, Zeng, Ningbo, Li, Lin, and Luo, Zinan

Subjects
PEANUTS, PEANUT breeding, GERMPLASM, PRINCIPAL components analysis, PHENOTYPES, FLOWERS
Abstract

Peanut is a leguminous crop with an indeterminate growth habit that will continuously flower during the entire reproductive development stage. Flowering redundancy adversely affects the yield and quality of peanut. In this study, eight flowering and five yield-related traits were collected and comprehensively evaluated from a diverse germplasm panel consisting of 232 peanut accessions, aiming to provide a theoretical basis for improving the flowering habit and yield for future peanut breeding efforts. As a result, large phenotypic diversity was observed in 13 traits. Most of the traits suggested high heritability, except high effective flowering duration (HEFD), days to 100% flower cessation (DTC100), and yield per plant (YPP). Days to 90% flower cessation (DTC90), days to DTC100, flowering duration (FD), and low effective flowering duration (LEFD) showed significant negative correlations with 100-seed weight, 100-pod weight, YPP, average weight per pod, and shelling percentage. Principal component analysis (PCA) suggested that flowering redundancy traits as well as yield-related traits contributed more to the first three PCs when compared to other traits. This study addresses the lack of peanut flowering phenotypic and genetic diversity and lays the foundation for in-depth research on redundancy-related genes in peanut flowering. [ABSTRACT FROM AUTHOR]

Published
2024
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7. The effects of calcium fertilization on morphological and physio-biochemical characteristics in peanut seedlings under waterlogging stress.

Author

Li, Lin, Dong, Mingjie, Tang, Kang, Zhang, Hao, Zeng, Ningbo, Yang, Huilin, Luo, Zinan, and Liu, Dengwang

Subjects
WATERLOGGING (Soils), PEANUTS, CALCIUM, SEEDLINGS, PLANT morphology, ROOT development
Abstract

Peanut is vulnerable under waterlogging stress, and it is important to explore efficient agronomic practices to reduce adverse effects induced by waterlogging stress. In this study, the effects of waterlogging stress on plant morphology, physiological and biochemical characters in peanut seedlings were studied. It was founded waterlogging stress posted adverse effects on plant growth and development and triggered the activities of antioxidant enzymes and osmotic adjustment substances to improve the plant tolerance under stress. It was also found that exogenous calcium fertilization could significantly improved root growth and development under stress. Moreover, higher dose of calcium fertilizer (1600 mg/kg) showed better performance on improving waterlogging tolerance than lower dose one (800 mg/kg) in peanut seedlings. This study explored positive effects of exogenous calcium on recovering damages especially in roots caused by waterlogging stress, providing a theoretical guidance in agronomic practice to improve waterlogging tolerance, and laying a foundation for agronomic practice when further discovering molecular mechanisms in response to waterlogging stress. [ABSTRACT FROM AUTHOR]

Published
2023
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9. Comparative Transcriptome Combined with Proteome Analyses Revealed Key Factors Involved in Alfalfa (Medicago sativa) Response to Waterlogging Stress

Author

Longxing Hu, Zeng Ningbo, Liang Chen, Yang Zhijian, and Zhifei Zhang

Subjects
0106 biological sciences, 0301 basic medicine, Proteomics, Arginine, Proteome, Biology, 01 natural sciences, Catalysis, Article, Inorganic Chemistry, Transcriptome, lcsh:Chemistry, 03 medical and health sciences, Valine, Gene Expression Regulation, Plant, Stress, Physiological, Databases, Genetic, RNA, Messenger, Physical and Theoretical Chemistry, KEGG, Molecular Biology, Gene, lcsh:QH301-705.5, Spectroscopy, Plant Proteins, Organic Chemistry, fungi, food and beverages, Water, Molecular Sequence Annotation, General Medicine, biochemical phenomena, metabolism, and nutrition, Computer Science Applications, waterlogging, 030104 developmental biology, Gene Ontology, Phenotype, Biochemistry, lcsh:Biology (General), lcsh:QD1-999, Leucine, molecular mechanism, alfalfa, 010606 plant biology & botany, Waterlogging (agriculture), Medicago sativa
Abstract

Alfalfa (Medicago sativa) is the most widely grown and most important forage crop in the world. However, alfalfa is susceptible to waterlogging stress, which is the major constraint for its cultivation area and crop production. So far, the molecular mechanism of alfalfa response to the waterlogging is largely unknown. Here, comparative transcriptome combined with proteomic analyses of two cultivars (M12, tolerant, M25, sensitive) of alfalfa showing contrasting tolerance to waterlogging were performed to understand the mechanism of alfalfa in response to waterlogging stress. Totally, 748 (581 up- and 167 down-regulated) genes were differentially expressed in leaves of waterlogging-stressed alfalfa compared with the control (M12_W vs. M12_CK), whereas 1193 (740 up- and 453 down-regulated) differentially abundant transcripts (DATs) were detected in the leaves of waterlogging-stressed plants in comparison with the control plants (M25_W vs. M25_CK). Furthermore, a total of 187 (122 up- and 65 down-regulated) and 190 (105 up- and 85 down-regulated) differentially abundant proteins (DAPs) were identified via isobaric tags for relative and absolute quantification (iTRAQ) method in M12_W vs. M12_CK and M25_W vs. M25_CK comparison, respectively. Compared dataset analysis of proteomics and transcriptomics revealed that 27 and eight genes displayed jointly up-regulated or down-regulated expression profiles at both mRNA and protein levels in M12_W vs. M12_CK comparison, whereas 30 and 27 genes were found to be co-up-regulated or co-down-regulated in M25_W vs. M25_CK comparison, respectively. The strongly enriched Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways for co-up-regulated genes at mRNA and protein levels in M12_W vs. M12_CK comparison were ‘Amino sugar and nucleotide sugar metabolism’, ‘Arginine and proline metabolism’ and ‘Starch and sucrose metabolism’, whereas co-up-regulated protein-related pathways including ‘Arginine and proline metabolism’ and ‘Valine, leucine and isoleucine degradation’ were largely enriched in M25_W vs. M25_CK comparison. Importantly, the identified genes related to beta-amylase, Ethylene response Factor (ERF), Calcineurin B-like (CBL) interacting protein kinases (CIPKs), Glutathione peroxidase (GPX), and Glutathione-S-transferase (GST) may play key roles in conferring alfalfa tolerance to waterlogging stress. The present study may contribute to our understanding the molecular mechanism underlying the responses of alfalfa to waterlogging stress, and also provide important clues for further study and in-depth characterization of waterlogging-resistance breeding candidate genes in alfalfa.

Published
2019

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