The pineapple genome and the evolution of CAM photosynthesis

Ming, R., VanBuren, R., Wai, C. M., Tang, H., Schatz, M. C., Bowers, J. E., Lyons, E., Wang, M. L., Chen, J., Biggers, E., Zhang, J., Huang, L., Zhang, L., Miao, W., Zhang, J., Ye, Z., Miao, C., Lin, Z., Wang, H., Zhou, H., Yim, W. C., Priest, H. D., Zheng, C., Woodhouse, M., Edger, P. P., Guyot, R., Guo, H. B., Guo, H., Zheng, G., Singh, R., Sharma, A., Min, X., Zheng, Y., Lee, H., Gurtowski, J., Sedlazeck, F. J., Harkess, A., McKain, M. R., Liao, Z., Fang, J., Liu, J., Zhang, X., Zhang, Q., Hu, W., Qin, Y., Wang, K., Chen, L. Y., Shirley, N., Lin, Y. R., Liu, L. Y., Hernandez, A. G., Wright, C. L., Bulone, V., Tuskan, G. A., Heath, K., Zee, F., Moore, P. H., Sunkar, R., Leebens-Mack, J. H., Mockler, T., Bennetzen, J. L., Freeling, M., Sankoff, D., Paterson, A. H., Zhu, X., Yang, X., Smith, J. A., Cushman, J. C., Paull, R. E., Yu, Q. (November 2015) The pineapple genome and the evolution of CAM photosynthesis. Nat Genet, 47. pp. 1435-1442. ISSN 1546-1718 (Electronic)1061-4036 (Linking)

URL: http://www.ncbi.nlm.nih.gov/pubmed/26523774
DOI: 10.1038/ng.3435

Abstract

Pineapple (Ananas comosus (L.) Merr.) is the most economically valuable crop possessing crassulacean acid metabolism (CAM), a photosynthetic carbon assimilation pathway with high water-use efficiency, and the second most important tropical fruit. We sequenced the genomes of pineapple varieties F153 and MD2 and a wild pineapple relative, Ananas bracteatus accession CB5. The pineapple genome has one fewer ancient whole-genome duplication event than sequenced grass genomes and a conserved karyotype with seven chromosomes from before the rho duplication event. The pineapple lineage has transitioned from C3 photosynthesis to CAM, with CAM-related genes exhibiting a diel expression pattern in photosynthetic tissues. CAM pathway genes were enriched with cis-regulatory elements associated with the regulation of circadian clock genes, providing the first cis-regulatory link between CAM and circadian clock regulation. Pineapple CAM photosynthesis evolved by the reconfiguration of pathways in C3 plants, through the regulatory neofunctionalization of preexisting genes and not through the acquisition of neofunctionalized genes via whole-genome or tandem gene duplication.

Item Type: Paper
Subjects: bioinformatics
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > genomes
organism description > plant
CSHL Authors:
Communities: CSHL labs > Schatz lab
Depositing User: Matt Covey
Date: 2 November 2015
Date Deposited: 03 Nov 2015 22:09
Last Modified: 29 Jun 2016 20:09
PMCID: PMC4867222
Related URLs:
URI: http://repository.cshl.edu/id/eprint/31963

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