ArticleBMC genomics2024
Genome-wide identification and expression analysis of the KNOX family and its diverse roles in response to growth and abiotic tolerance in sweet potato and its two diploid relatives.
Article in BMC genomics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- KNOX1 Transcription Factors in Plants with a Special Focus on Horticultural Crops: A Review.Plants (Basel, Switzerland) · 2026Review
- Genome-Wide Analysis of thePlants (Basel, Switzerland) · 2026Article
- Genome-wide identification of the ATL gene family and their expression analysis in sweetpotato and its two diploid relatives.BMC plant biology · 2026Article
- Genome-wide comparative analysis of the HSP90 gene family in four Ipomoea species and functional insights into the potentiality of IbHSP90-2 in low temperature tolerance.Frontiers in plant science · 2026Article
- Genome-wide identification and expression analysis of the ferritin family in sweetpotato and its two diploid relatives.BMC plant biology · 2025Article
- Identification of the KNOX Gene Family inPlants (Basel, Switzerland) · 2025Article
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7 authors.
Funding
Abstract
KNOXs, a type of homeobox genes that encode atypical homeobox proteins, play an essential role in the regulation of growth and development, hormonal response, and abiotic stress in plants. However, the KNOX gene family has not been explored in sweet potato. In this study, through sequence alignment, genomic structure analysis, and phylogenetic characterization, 17, 12 and 11 KNOXs in sweet potato (I. batatas, 2n = 6x = 90) and its two diploid relatives I. trifida (2n = 2x = 30) and I. triloba (2n = 2x = 30) were identified. The protein physicochemical properties, chromosome localization, phylogenetic relationships, gene structure, protein interaction network, cis-elements of promoters, tissue-specific expression and expression patterns under hormone treatment and abiotic stresses of these 40 KNOX genes were systematically studied. IbKNOX4, -5, and - 6 were highly expressed in the leaves of the high-yield varieties Longshu9 and Xushu18. IbKNOX3 and IbKNOX8 in Class I were upregulated in initial storage roots compared to fibrous roots. IbKNOXs in Class M were specifically expressed in the stem tip and hardly expressed in other tissues. Moreover, IbKNOX2 and - 6, and their homologous genes were induced by PEG/mannitol and NaCl treatments. The results showed that KNOXs were involved in regulating growth and development, hormone crosstalk and abiotic stress responses between sweet potato and its two diploid relatives. This study provides a comparison of these KNOX genes in sweet potato and its two diploid relatives and a theoretical basis for functional studies.
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