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A single locus confers tolerance to continuous light and allows substantial yield increase in tomato

Author

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  • Aaron I. Velez-Ramirez

    (Horticulture and Product Physiology, Wageningen University
    Laboratory of Plant Physiology, Wageningen University)

  • Wim van Ieperen

    (Horticulture and Product Physiology, Wageningen University)

  • Dick Vreugdenhil

    (Laboratory of Plant Physiology, Wageningen University
    Centre for BioSystems Genomics)

  • Pieter M. J. A. van Poppel

    (Monsanto Holland B.V.)

  • Ep Heuvelink

    (Horticulture and Product Physiology, Wageningen University)

  • Frank F. Millenaar

    (Monsanto Holland B.V.
    Present address: Bayer CropScience Vegetable Seeds, PO Box 4005, 6080 AA Haelen, The Netherlands)

Abstract

An important constraint for plant biomass production is the natural day length. Artificial light allows for longer photoperiods, but tomato plants develop a detrimental leaf injury when grown under continuous light—a still poorly understood phenomenon discovered in the 1920s. Here, we report a dominant locus on chromosome 7 of wild tomato species that confers continuous light tolerance. Genetic evidence, RNAseq data, silencing experiments and sequence analysis all point to the type III light harvesting chlorophyll a/b binding protein 13 (CAB-13) gene as a major factor responsible for the tolerance. In Arabidopsis thaliana, this protein is thought to have a regulatory role balancing light harvesting by photosystems I and II. Introgressing the tolerance into modern tomato hybrid lines, results in up to 20% yield increase, showing that limitations for crop productivity, caused by the adaptation of plants to the terrestrial 24-h day/night cycle, can be overcome.

Suggested Citation

  • Aaron I. Velez-Ramirez & Wim van Ieperen & Dick Vreugdenhil & Pieter M. J. A. van Poppel & Ep Heuvelink & Frank F. Millenaar, 2014. "A single locus confers tolerance to continuous light and allows substantial yield increase in tomato," Nature Communications, Nature, vol. 5(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5549
    DOI: 10.1038/ncomms5549
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    Cited by:

    1. Amarullah & Indradewa, D. & Yudono, P. & dan Sunarminto, B.H., 2016. "EFFECT OF SOURCE-SINK MANIPULATION ON YIELD AND RELATED YIELD COMPONENTS IN CASSAVA, Manihot esculenta Crantz," International Journal of Agricultural Research, Innovation and Technology (IJARIT), IJARIT Research Foundation, vol. 6(2), December.

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