Sequencing of cultivated peanut, Arachis hypogaea, yields insights into genome evolution and oil improvement

X. Chen; Q. Lu; H. Liu; J. Zhang; Y. Hong; H. Lan; H. Li; J. Wang; S. Li; M.K. Pandey; Z. Zhang; G. Zhou; J. Yu; G. Zhang; J. Yuan; X. Li; S. Wen; F. Meng; S. Yu; X. Wang; K.H.M. Siddique; Z-J Liu; A.H. Paterson; R.K. Varshney; X. Liang

doi:10.1016/j.molp.2019.03.005

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Sequencing of cultivated peanut, Arachis hypogaea, yields insights into genome evolution and oil improvement

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Sequencing of cultivated peanut, Arachis hypogaea, yields insights into genome evolution and oil improvement

X. Chen, Q. Lu, H. Liu, J. Zhang, Y. Hong, H. Lan, H. Li, J. Wang, H. Liu, S. Li, …

Molecular Plant, Vol.12(7), pp.920-934

2019

DOI: https://doi.org/10.1016/j.molp.2019.03.005

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Abstract

Cultivated peanut (Arachis hypogaea) is an allotetraploid crop planted in Asia, Africa, and America for edible oil and protein. To explore the origins and consequences of tetraploidy, we sequenced the allotetraploid A. hypogaea genome and compared it with the related diploid Arachis duranensis and Arachis ipaensis genomes. We annotated 39 888 A-subgenome genes and 41 526 B-subgenome genes in allotetraploid peanut. The A. hypogaea subgenomes have evolved asymmetrically, with the B subgenome resembling the ancestral state and the A subgenome undergoing more gene disruption, loss, conversion, and transposable element proliferation, and having reduced gene expression during seed development despite lacking genome-wide expression dominance. Genomic and transcriptomic analyses identified more than 2 500 oil metabolism-related genes and revealed that most of them show altered expression early in seed development while their expression ceases during desiccation, presenting a comprehensive map of peanut lipid biosynthesis. The availability of these genomic resources will facilitate a better understanding of the complex genome architecture, agronomically and economically important genes, and genetic improvement of peanut.

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Title: Sequencing of cultivated peanut, Arachis hypogaea, yields insights into genome evolution and oil improvement
Authors/Creators: X. Chen (Author/Creator) - Crops Research Institute
Q. Lu (Author/Creator) - Crops Research Institute
H. Liu (Author/Creator) - Crops Research Institute
J. Zhang (Author/Creator) - Hebei Academy of Agriculture and Forestry Sciences
Y. Hong (Author/Creator) - Crops Research Institute
H. Lan (Author/Creator) - Shijiazhuang Yiling Pharmaceutical (China)
H. Li (Author/Creator) - Crops Research Institute
J. Wang (Author/Creator) - North China University of Science and Technology
H. Liu (Author/Creator) - Crops Research Institute
S. Li (Author/Creator) - Crops Research Institute
M.K. Pandey (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
Z. Zhang (Author/Creator) - North China University of Science and Technology
G. Zhou (Author/Creator) - Crops Research Institute
J. Yu (Author/Creator) - North China University of Science and Technology
G. Zhang (Author/Creator) - Smithsonian Conservation Biology Institute
J. Yuan (Author/Creator) - North China University of Science and Technology
X. Li (Author/Creator) - Crops Research Institute
S. Wen (Author/Creator) - Crops Research Institute
F. Meng (Author/Creator) - North China University of Science and Technology
S. Yu (Author/Creator) - Shandong Academy of Agricultural Sciences
X. Wang (Author/Creator) - North China University of Science and Technology
K.H.M. Siddique (Author/Creator) - The University of Western Australia
Z-J Liu (Author/Creator) - Fujian Agriculture and Forestry University
A.H. Paterson (Author/Creator) - Plant (United States)
R.K. Varshney (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
X. Liang (Author/Creator) - Crops Research Institute
Publication Details: Molecular Plant, Vol.12(7), pp.920-934
Publisher: Cell Press an Imprint of Elsevier
Identifiers: 991005541189707891
Copyright: © 2019 The Authors.
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.4 Crop Science; 3.4.96 QTL
Web Of Science research areas: Biochemistry & Molecular Biology; Plant Sciences
ESI research areas: Plant & Animal Science