The kinome of pineapple: catalog and insights into functions in crassulacean acid metabolism plants

BMC Plant Biology
Kaikai ZhuZong-Ming Max Cheng

Abstract

Crassulacean acid metabolism (CAM) plants use water 20-80% more efficiently by shifting stomata opening and primary CO2 uptake and fixation to the nighttime. Protein kinases (PKs) play pivotal roles in this biological process. However, few PKs have been functionally analyzed precisely due to their abundance and potential functional redundancy (caused by numerous gene duplications). In this study, we systematically identified a total of 758 predicted PK genes in the genome of a CAM plant, pineapple (Ananas comosus). The pineapple kinome was classified into 20 groups and 116 families based on the kinase domain sequences. The RLK was the largest group, containing 480 members, and over half of them were predicted to locate at the plasma membrane. Both segmental and tandem duplications make important contributions to the expansion of pineapple kinome based on the synteny analysis. Ka/Ks ratios showed all of the duplication events were under purifying selection. The global expression analysis revealed that pineapple PKs exhibit different tissue-specific and diurnal expression patterns. Forty PK genes in a cluster performed higher expression levels in green leaf tip than in white leaf base, and fourteen of them had strong differential...Continue Reading

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Citations

Jan 17, 2020·The Plant Journal : for Cell and Molecular Biology·Methawi Chomthong, Howard Griffiths
Jul 2, 2021·Frontiers in Plant Science·José Ribamar Costa Ferreira-NetoAna Maria Benko-Iseppon
Jul 27, 2021·Frontiers in Plant Science·Alexandre Hild AonoAnete Pereira de Souza

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Datasets Mentioned

BETA
HM236375
HM236376

Methods Mentioned

BETA
environmental stress
RNA-Seq
transgenic

Software Mentioned

BLASTN
HMMER
Circos
ClustalW
MUSCLE
Multiple Experiment Viewer ( MEV )
Cytoscape
Blast2GO
LOCALIZER
Multiple Collinearity Scan toolkit ( MCScanX )

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