203 results match your criteria: "Sanya Nanfan Research Institute of Hainan University[Affiliation]"

AIM1-dependent high basal salicylic acid accumulation modulates stomatal aperture in rice.

New Phytol

May 2023

State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.

The basal levels of salicylic acid (SA) vary dramatically among plant species. In the shoot, for example, rice contains almost 100 times higher SA levels than Arabidopsis. Despite its high basal levels, neither the biosynthetic pathway nor the biological functions of SA are well understood in rice.

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Steroidal alkaloids (SAs) and steroidal glycoalkaloids (SGAs) are common constituents of plant species belonging to the family. However, the molecular mechanism regulating the formation of SAs and SGAs remains unknown. Here, genome-wide association mapping was used to elucidate SA and SGA regulation in tomatoes: a SlGAME5-like glycosyltransferase (Solyc10g085240) and the transcription factor SlDOG1 (Solyc10g085210) were significantly associated with steroidal alkaloid composition.

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Plants respond to wounding by reprogramming the expression of genes involved in secondary metabolism. trees produce many bioactive secondary metabolites in response to wounding, but the regulatory mechanism of agarwood formation in the early response to mechanical wounding has remained unclear. To gain insights into the process of transcriptome changes and to determine the regulatory networks of to an early response (15 days) to mechanical wounding, we collected samples from the untreated (Asc1) and treated (Asf1) xylem tissues and performed RNA sequencing (RNA-seq).

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Pyridoxine biosynthesis protein MoPdx1 affects the development and pathogenicity of .

Front Cell Infect Microbiol

February 2023

College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China.

B vitamins are essential micro-organic compounds for the development of humans and animals. Vitamin B6 comprises a group of components including pyridoxine, pyridoxal, and pyridoxamine. In addition, vitamin B6 acts as the coenzymes in amino acid biosynthesis, decarboxylation, racemic reactions, and other biological processes.

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Crop rotation can assemble distinct core microbiota as functionally specific barriers against the invasion of banana Fusarium oxysporum pathogens. However, the taxonomic identity of rotation-unique core taxa and their legacy effects are poorly understood under field conditions. Pepper and eggplant rotations were employed to reveal rotation crop- and banana-unique antagonistic core taxa by in situ tracking of the soil microbiome assembly patterns for 2 yr.

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Single-cell RNA landscape of the special fiber initiation process in Bombax ceiba.

Plant Commun

September 2023

Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou 570228, China; Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Sanya 572000, China. Electronic address:

As a new source of natural fibers, the Bombax ceiba tree can provide thin, light, extremely soft and warm fiber material for the textile industry. Natural fibers are an ideal model system for studying cell growth and differentiation, but the molecular mechanisms that regulate fiber initiation are not fully understood. In B.

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RNA-Seq reveals the key pathways and genes involved in the light-regulated flavonoids biosynthesis in mango ( L.) peel.

Front Plant Sci

January 2023

Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences & Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Haikou, China.

Introduction: Flavonoids are important water soluble secondary metabolites in plants, and light is one of the most essential environmental factors regulating flavonoids biosynthesis. In the previous study, we found bagging treatment significantly inhibited the accumulation of flavonols and anthocyanins but promoted the proanthocyanidins accumulation in the fruit peel of mango ( L.) cultivar 'Sensation', while the relevant molecular mechanism is still unknown.

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Comparative proteomic analysis identified proteins and the phenylpropanoid biosynthesis pathway involved in the response to ABA treatment in cotton fiber development.

Sci Rep

January 2023

Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, 570228, China.

Abscisic acid (ABA) is a plant hormone that plays an important role in cotton fiber development. In this study, the physiological changes and proteomic profiles of cotton (Gossypium hirsutum) ovules were analyzed after 20 days of ABA or ABA inhibitor (ABAI) treatment. The results showed that compared to the control (CK), the fiber length was significantly decreased under ABA treatment and increased under ABAI treatment.

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Natural variation in Tiller Number 1 affects its interaction with TIF1 to regulate tillering in rice.

Plant Biotechnol J

May 2023

MOE Key Laboratory of Crop Heterosis and Utilization/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China.

Tiller number per plant-a cardinal component of ideal plant architecture-affects grain yield potential. Thus, alleles positively affecting tillering must be mined to promote genetic improvement. Here, we report a Tiller Number 1 (TN1) protein harbouring a bromo-adjacent homology domain and RNA recognition motifs, identified through genome-wide association study of tiller numbers.

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The complete plastome sequence of (Parkinson ex F.A. Zorn) Fosberg, (Moraceae).

Mitochondrial DNA B Resour

January 2023

College of Tropical Crops, Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University, Haikou, China.

(Parkinson ex F.A. Zorn) Fosberg is native to the Pacific Islands, India, and the Philippines.

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Soybean ( L.) is susceptible to low temperatures. Increasing lines of evidence indicate that abiotic stress-responsive genes are involved in plant low-temperature stress response.

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Basil (Ocimum L.) is widely used as a flavor ingredient, however research on basil flavor is limited. In the current study, nine basil species were selected, including Ocimum basilicum L.

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Identification and expression of the CCO family during development, ripening and stress response in banana.

Genetica

April 2023

Institute of Scientific and Technical Information, Institute of Tropical Bioscience and Biotechnology, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Hainan, China.

Plant hormone abscisic acid (ABA) plays an important role in plant growth, development and response to biotic / abiotic stressors. Thus, it is necessary to investigate the crucial genes associated with ABA synthesis. Currently, the carotenoid cleavage oxygenases (CCOs) family that function as the key step for ABA synthesis are not well understood in banana.

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Tomato () is the most valuable fruit and horticultural crop species worldwide. Compared with the fruits of their progenitors, those of modern tomato cultivars are, however, often described as having unsatisfactory taste or lacking flavor. The flavor of a tomato fruit arises from a complex mix of tastes and volatile metabolites, including sugars, acids, amino acids, and various volatiles.

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(Coquillett) is a highly damaging agricultural pest in many tropical and subtropical countries around the world and high temperatures usually affect its survival. To clarify the effect of short-term high temperatures on the survival and lifespan of , newly emerged adults of three consecutive generations (F, F, and F) were exposed to 25 °C, 33 °C, 37 °C, 41 °C, or 45 °C treatments for 1 h. The effect of these temperatures on survival and lifespan was evaluated using biological indicators such as lifespan and pupation rate.

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To investigate the causes of the "sugar receding" in 'Feizixiao' litchi ( Sonn.) pulp, the main sugar contents and sucrose metabolism enzyme activities were measured in pulp obtained in 2020 and 2021. Pulp RNA obtained in 2020 was extracted at 35, 63, and 69 days after anthesis (DAA) for transcriptome sequencing analysis.

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Introduction: Lignin is a complex aromatic polymer plays major biological roles in maintaining the structure of plants and in defending them against biotic and abiotic stresses. Cinnamoyl-CoA reductase (CCR) is the first enzyme in the lignin-specific biosynthetic pathway, catalyzing the conversion of hydroxycinnamoyl-CoA into hydroxy cinnamaldehyde. T.

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Natural variation of regulates grain number per panicle in rice.

Front Plant Sci

December 2022

State Key Laboratory of Agrobiotechnology/Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China.

The grain number per panicle (GNP) is an important yield component. Identifying naturally favorable variations in GNP will benefit high-yield rice breeding. Here, we performed a genome-wide association study using a mini-core collection of 266 cultivated rice accessions with deep sequencing data and investigated the phenotype for three years.

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Identification and Mapping of QTLs for Sulfur-Containing Amino Acids in Soybean ( L.).

J Agric Food Chem

January 2023

The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, Guangdong, People's Republic of China.

Soybean is a major source of high-quality protein for humans and animals. The content of sulfur-containing amino acids (SAA) in soybean is insufficient, which has become the main factor limiting soybean nutrition. In this study, we used the high-density genetic maps derived from Guizao 1 and Brazil 13 to evaluate the quantitative trait loci of cysteine (Cys), methionine (Met), SAA, glycinin (7S), β-conglycinin (11S), ratio of glycinin to β-conglycinin (RGC), and protein content (PC).

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Neoscytalidium dimidiatum is the main causal agent of pitaya canker. Most studies of virulence and pathogenicity genes have measured expression levels using real-time quantitative polymerase chain reaction (RT-qPCR). Suitable reference genes are essential for ensuring that estimates of gene expression levels by RT-qPCR are accurate.

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N6-methyladenosine (m6A) RNA modification is the most prevalent type of RNA methylation and plays a pivotal role in the development of plants. However, knowledge of the m6A modification in litchi remains limited. In this study, a complete analysis of m6A writers, erasers, and readers in litchi was performed and 31 litchi m6A regulatory genes were identified in total, including 7 m6A writers, 12 m6A erases, and 12 readers.

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Large-scale genomic and transcriptomic profiles of rice hybrids reveal a core mechanism underlying heterosis.

Genome Biol

December 2022

Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education / Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.

Article Synopsis
  • - The study investigates the molecular mechanisms of heterosis in rice by analyzing 418 hybrids created from two testers and 265 rice varieties, revealing that the effectiveness of heterosis is influenced by genetic backgrounds and environmental conditions.
  • - Findings indicate that nonadditive quantitative trait loci (QTLs) are the primary genetic factors contributing to heterosis, showing greater sensitivity to genetic backgrounds than additive QTLs.
  • - The researchers propose a new model called homo-insufficiency under insufficient background (HoIIB), suggesting that heterosis arises not from the advantages of heterozygotes but from disadvantages of homozygotes in poor genetic contexts, offering insights for future hybrid rice breeding strategies.
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The NET locus determines the food taste, cooking and nutrition quality of rice.

Sci Bull (Beijing)

October 2022

Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Sanya 572025, China; College of Tropical Crops, Hainan University, Haikou 570228, China. Electronic address:

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Natural variations of OsAUX5, a target gene of OsWRKY78, control the neutral essential amino acid content in rice grains.

Mol Plant

February 2023

Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Sanya 572025, China; College of Tropical Crops, Hainan University, Haikou 570228, China. Electronic address:

Grain essential amino acid (EAA) levels contribute to rice nutritional quality. However, the molecular mechanisms underlying EAA accumulation and natural variation in rice grains remain unclear. Here we report the identification of a previously unrecognized auxin influx carrier subfamily gene, OsAUX5, which encodes an amino acid transporter that functions in uptake of multiple amino acids.

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Fast track to obtain heritable transgenic sweet potato inspired by its evolutionary history as a naturally transgenic plant.

Plant Biotechnol J

April 2023

Key Laboratory of Sweet Potato Biology and Biotechnology, Ministry of Agriculture and Rural Affairs/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis & Utilization and Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing, China.

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