Genome of Paspalum vaginatum and the role of trehalose mediated autophagy in increasing maize biomass

Guangchao Sun, Nishikant Wase, Shengqiang Shu, Jerry Jenkins, Bangjun Zhou, J. Vladimir Torres-Rodríguez, Cindy Chen, Laura Sandor, Chris Plott, Yuko Yoshinga, Christopher Daum, Peng Qi, Kerrie Barry, Anna Lipzen, Luke Berry, Connor Pedersen, Thomas Gottilla, Ashley Foltz, Huihui Yu, Ronan O’Malley, Chi Zhang, Katrien M. Devos, Brandi Sigmon, Bin Yu, Toshihiro Obata, Jeremy Schmutz () and James C. Schnable ()
Additional contact information
Guangchao Sun: University of Nebraska-Lincoln
Nishikant Wase: University of Nebraska-Lincoln
Shengqiang Shu: Lawrence Berkeley National Laboratory
Jerry Jenkins: HudsonAlpha Institute for Biotechnology
Bangjun Zhou: University of Nebraska-Lincoln
J. Vladimir Torres-Rodríguez: University of Nebraska-Lincoln
Cindy Chen: Lawrence Berkeley National Laboratory
Laura Sandor: Lawrence Berkeley National Laboratory
Chris Plott: HudsonAlpha Institute for Biotechnology
Yuko Yoshinga: Lawrence Berkeley National Laboratory
Christopher Daum: Lawrence Berkeley National Laboratory
Peng Qi: University of Georgia
Kerrie Barry: Lawrence Berkeley National Laboratory
Anna Lipzen: Lawrence Berkeley National Laboratory
Luke Berry: University of Nebraska-Lincoln
Connor Pedersen: University of Nebraska-Lincoln
Thomas Gottilla: University of Georgia
Ashley Foltz: University of Nebraska-Lincoln
Huihui Yu: University of Nebraska-Lincoln
Ronan O’Malley: Lawrence Berkeley National Laboratory
Chi Zhang: University of Nebraska-Lincoln
Katrien M. Devos: University of Georgia
Brandi Sigmon: University of Nebraska-Lincoln
Bin Yu: University of Nebraska-Lincoln
Toshihiro Obata: University of Nebraska-Lincoln
Jeremy Schmutz: Lawrence Berkeley National Laboratory
James C. Schnable: University of Nebraska-Lincoln

Nature Communications, 2022, vol. 13, issue 1, 1-20

Abstract: Abstract A number of crop wild relatives can tolerate extreme stress to a degree outside the range observed in their domesticated relatives. However, it is unclear whether or how the molecular mechanisms employed by these species can be translated to domesticated crops. Paspalum (Paspalum vaginatum) is a self-incompatible and multiply stress-tolerant wild relative of maize and sorghum. Here, we describe the sequencing and pseudomolecule level assembly of a vegetatively propagated accession of P. vaginatum. Phylogenetic analysis based on 6,151 single-copy syntenic orthologues conserved in 6 related grass species places paspalum as an outgroup of the maize-sorghum clade. In parallel metabolic experiments, paspalum, but neither maize nor sorghum, exhibits a significant increase in trehalose when grown under nutrient-deficit conditions. Inducing trehalose accumulation in maize, imitating the metabolic phenotype of paspalum, results in autophagy dependent increases in biomass accumulation.

Date: 2022
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DOI: 10.1038/s41467-022-35507-8

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