Evidence map›Paper›PMID 40885937›Full record

ArticleBMC plant biology2025

Integrative metabolomic and transcriptomic analysis provides insight into the mechanism of pigmentation in potato tuber eyes.

Yan Yang, Wei Jiang, Renxing Wei, Lili Lu, Lei Zhang, Xiu Wang, Binquan Huang, Xianping Li

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Yan Yang *Yunnan Branch of National Potato Improvement Center, Industrial Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China.
Wei Jiang *Yunnan Branch of National Potato Improvement Center, Industrial Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China. jiangweiyaas@hotmail.com.
Renxing Wei *Yunnan Branch of National Potato Improvement Center, Industrial Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China.
Lili LuYunnan Branch of National Potato Improvement Center, Industrial Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China.
Lei ZhangYunnan Branch of National Potato Improvement Center, Industrial Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China.
Xiu WangYunnan Branch of National Potato Improvement Center, Industrial Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China.
Binquan HuangSchool of Agriculture, Yunnan University, Kunming, China. binquanh@ynu.edu.cn.
Xianping LiYunnan Branch of National Potato Improvement Center, Industrial Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China. lxianping@hotmail.com.

Funding

National Natural Science Foundation of China 31560411Yunnan Fundamental Research Projects 202101AT070257Yunnan Fundamental Research Projects 202101BD070001-117Yunnan Fundamental Research Projects 202301BD070001-124Yunnan Province Science and Technology Plan Project 202304BI090026Yunnan Province Science and Technology Plan Project 202505AK340005
6 · The paper itself

Abstract

backgroundThe pigmentation of tuber eyes serves as a critical morphological marker for distinguishing potato varieties, yet the molecular mechanisms underlying localized pigmentation in tuber eyes remain largely unexplored. In this study, localized pigmentation around the tuber eyes of a potato variety named M4, which produces tubers with yellow and red eyes, was studied via targeted and untargeted metabolomics and transcriptome profiling.

resultsA comparison of the yellow and red tuber eyes revealed that the main differentially accumulated metabolites (DAMs) were pelargonidin, cyanidin, and peonidin, leading to the red pigmentation surrounding the tuber eyes. Other metabolites, such as flavonoids (e.g., kaempferol-3-O-rutinoside), lonicerin, turanose, isomaltulose, alpha, alpha-trehalose, galactinol, and 2'-hydroxyacetophenone, also contribute to the accumulation of anthocyanins in red tuber eyes. Transcriptomic analysis revealed 22 differentially expressed genes (DEGs) in M4, with 18 upregulated genes and 4 downregulated genes, including a novel gene, MSTRG.13,281, which is predicted to encode a long noncoding RNA (lncRNA). Among these genes, ten were associated with the anthocyanin biosynthetic pathway, whereas seven were putative defence-related genes. Integrative analyses of metabolic and transcriptomic data revealed strong network-level associations between 21 DEGs and both 10 targeted and 7 untargeted DAMs.

conclusionsThese findings enhance our understanding of pigmentation patterning in potatoes and provide valuable genetic and metabolic insights for breeding programs aiming to manipulate tuber colour for improved varietal identification and nutritional quality.

Indexed as

PigmentationPlant TubersSolanum tuberosumTranscriptomeAnthocyaninsGene Expression ProfilingGene Expression Regulation, PlantMetabolomeMetabolomicsAnthocyaninsAnthocyanin accumulationColour of tuber eyesMetabolomicsPotatoTranscriptome

Identifiers

PMID40885937
PMCPMC12398081

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