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  Comparative transcriptomics analysis reveals a calcineurin B-like gene to positively regulate constitutive and acclimated freezing tolerance in potato

Chen, L., Zhao, H., Chen, Y., Jiang, F., Zhou, F., Liu, Q., et al. (2022). Comparative transcriptomics analysis reveals a calcineurin B-like gene to positively regulate constitutive and acclimated freezing tolerance in potato. Plant, Cell and Environment, 45(11), 3305-3321. doi:10.1111/pce.14432.

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Genre: Journal Article
Alternative Title : Plant, Cell & Environment

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 Creators:
Chen, Lin1, Author
Zhao, Hongbo1, Author
Chen, Ye1, Author
Jiang, Fujing1, Author
Zhou, Feiyan1, Author
Liu, Qing1, Author
Fan, Yongqi1, Author
Liu, Tiantian1, Author
Tu, Wei1, Author
Walther, D.2, Author           
Song, Botao1, Author
Affiliations:
1external, ou_persistent22              
2BioinformaticsCIG, Infrastructure Groups and Service Units, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753303              

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Free keywords: CBF, CBL1, freezing tolerance, potato
 Abstract: AbstractFreezing stress is a major limiting factor in crop production. To increase frost-hardiness of crops via breeding, deciphering the genes conferring freezing-tolerance is vital. Potato cultivars (Solanum tuberosum) are generally freezing-sensitive, but some potato wild species are freezing-tolerant, including S. commersonii, S. malmeanum, and S. acaule. However, the underlying molecular mechanisms conferring the freezing-tolerance to the wild species remain to be deciphered. In the present study, five representative genotypes of the above-mentioned species with distinct freezing-tolerance were investigated. Comparative transcriptomics analysis showed that SaCBL1?like (calcineurin B-like protein) was up-regulated substantially in all of the freezing-tolerant genotypes. Transgenic over-expression and known-down lines of SaCBL1?like were examined. SaCBL1?like was shown to confer freezing-tolerance without significantly impacting main agricultural traits. A functional mechanism analysis showed that SaCBL1?like increases the expression of the CBF-regulon (C-repeat binding factor) as well as causes a prolonged higher expression of CBF1 after exposure to cold conditions. Furthermore, SaCBL1?like was found to only interact with SaCIPK3?1 (CBL-interacting protein kinase) among all apparent cold-responsive SaCIPKs. Our study identifies SaCBL1?like to play a vital role in conferring freezing tolerance in potato, which may provide a basis for a targeted potato breeding for frost-hardiness.This article is protected by copyright. All rights reserved.

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Language(s): eng - English
 Dates: 2022-08-302022-11
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1111/pce.14432
 Degree: -

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Title: Plant, Cell and Environment
  Other : Plant, Cell & Environment
Source Genre: Journal
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Publ. Info: Oxford, England : Blackwell Science
Pages: - Volume / Issue: 45 (11) Sequence Number: - Start / End Page: 3305 - 3321 Identifier: ISSN: 0140-7791
CoNE: https://pure.mpg.de/cone/journals/resource/954925471334