ArticleBMC plant biology2020
Genome-wide systematic characterization of the HAK/KUP/KT gene family and its expression profile during plant growth and in response to low-K
Article in BMC plant biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 42 citations in OpenAlex.
- Identification of the HAK/KUP/KT Potassium Transporter Gene Family in Sweet Potato and Functional Characterization of IbHAK5A.Plants (Basel, Switzerland) · 2026Article
- Uncovering the genetic architecture of biomass yield and related traits in Southern US oat germplasm using genome-wide association study.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
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- Molecular mechanisms and evolutionary adaptations of transporters for photosynthates and specialized metabolites in plants.Plant cell reports · 2026Review
- Identification, classification, and stress-responsive regulation ofFrontiers in plant science · 2025Article
- Investigation of two-pore KHeliyon · 2024Article
- Genome-wide identification, characterization and expression pattern analysis of HAK/KUP/KT potassium transporter gene family in potato.Frontiers in plant science · 2024Article
- Genome-Wide Identification and Characterization of thePlants (Basel, Switzerland) · 2023Article
- Article
- Genome-wide identification and multiple abiotic stress transcript profiling of potassium transport gene homologs inFrontiers in plant science · 2022Article
- Article
- Recent Advances in Genome-wide Analyses of Plant Potassium Transporter Families.Current genomics · 2021Review
- Comparative phylogenetic analysis of CBL reveals the gene family evolution and functional divergence in Saccharum spontaneum.BMC plant biology · 2021Article
- Integrated Analysis of miRNAs Associated With Sugarcane Responses to Low-Potassium Stress.Frontiers in plant science · 2021Article
- Genome-wide characterization and expression analysis of HAK K3 Biotech · 2021Article
- Genome-Wide Survey and Expression Analysis of the KT/HAK/KUP Family inInternational journal of molecular sciences · 2020Article
- Decoding Plant Metabolomic Response to Potassium and Nutrient Stresses in Controlled Environments.Physiologia plantarumReview
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 2 countries.
Funding
Abstract
backgroundPlant genomes contain a large number of HAK/KUP/KT transporters, which play important roles in potassium uptake and translocation, osmotic potential regulation, salt tolerance, root morphogenesis and plant development. Potassium deficiency in the soil of a sugarcane planting area is serious. However, the HAK/KUP/KT gene family remains to be characterized in sugarcane (Saccharum).
resultsIn this study, 30 HAK/KUP/KT genes were identified in Saccharum spontaneum. Phylogenetics, duplication events, gene structures and expression patterns were analyzed. Phylogenetic analysis of the HAK/KUP/KT genes from 15 representative plants showed that this gene family is divided into four groups (clades I-IV). Both ancient whole-genome duplication (WGD) and recent gene duplication contributed to the expansion of the HAK/KUP/KT gene family. Nonsynonymous to synonymous substitution ratio (Ka/Ks) analysis showed that purifying selection was the main force driving the evolution of HAK/KUP/KT genes. The divergence time of the HAK/KUP/KT gene family was estimated to range from 134.8 to 233.7 Mya based on Ks analysis, suggesting that it is an ancient gene family in plants. Gene structure analysis showed that the HAK/KUP/KT genes were accompanied by intron gain/loss in the process of evolution. RNA-seq data analysis demonstrated that the HAK/KUP/KT genes from clades II and III were mainly constitutively expressed in various tissues, while most genes from clades I and IV had no or very low expression in the tested tissues at different developmental stages. The expression of SsHAK1 and SsHAK21 was upregulated in response to low-K
conclusionsThis study provided insights into the evolutionary history of HAK/KUP/KT genes. HAK7/9/18 were mainly expressed in the upper photosynthetic zone and mature zone of the stem. HAK7/9/18/25 were regulated by sunlight. SsHAK1 and SsHAK21 played important roles in mediating potassium acquisition under limited K
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