Evidence map›Paper›PMID 42210120›Full record

ArticleBMC plant biology2026

Genome-wide identification of the kiwifruit AcTPS family and analysis of its drought-responsive expression patterns.

Yinqiang Zi, Xiaozhen Liu, Zhuo Wei, Ping Tian, Rong Xu, Hanyao Zhang

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Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Yinqiang ZiKey Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China.
Xiaozhen LiuKey Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China.
Zhuo WeiKey Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China.
Ping TianKey Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China.
Rong XuYuxi Normal University, Yuxi, 653100, China. xurong@yxnu.edu.cn.
Hanyao ZhangKey Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China. zhanghanyao@swfu.edu.cn.

Funding

Agricultural Joint Key Projects in Yunnan Province 202301BD070001-003
6 · The paper itself

Abstract

Drought stress severely restricts the growth, development, yield, and fruit quality of Actinidia chinensis, making it urgent to explore drought resistance genes and their regulatory mechanisms. Trehalose-6-phosphate synthase (TPS) genes are key genes involved in trehalose synthesis and metabolism, playing important roles in plant abiotic stress tolerance. Based on the genome database, transcriptome data, and leaf soluble sugar content analysis of A. chinensis, we investigated the response of A. chinensis and its AcTPS gene family to drought stress. Through bioinformatics and phylogenetic analysis, 13 AcTPS genes were identified, which were divided into two subfamilies and unevenly distributed across 11 chromosomes. Under drought stress, seven AcTPS genes showed significant expression changes, and five randomly selected genes were validated by qRT-PCR, with results highly consistent with the transcriptome data. Drought stress severely inhibited seedling growth, reduced leaf relative water content, and significantly promoted the accumulation of trehalose in A. chinensis leaves, indicating that the plant adapts to drought by regulating soluble sugar metabolism. Integrated transcriptomic and metabolomic analyses indicate that AcTPS1 may be related to trehalose biosynthesis, and a potential time-lag effect between trehalose content and AcTPS1 gene expression was observed. This study is limited to bioinformatics and omics analyses; AcTPS1 may be related to drought resistance in kiwi, but further functional validation is still required.

Indexed as

ActinidiaGlucosyltransferasesPlant ProteinsDrought ResistanceDroughtsGene Expression ProfilingGene Expression Regulation, PlantGenome, PlantPhylogenyStress, PhysiologicalTrehaloseGlucosyltransferasesPlant ProteinsTrehalosetrehalose-6-phosphate synthaseActinidia chinensisAcTPSDrought stressMetabolomic analysisSoluble sugarTranscriptomic

Identifiers

PMID42210120
PMCPMC13404114

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