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Genome of the world's smallest flowering plant, Wolffia australiana, helps explain its specialized physiology and unique morphology.


ABSTRACT: Watermeal, Wolffia australiana, is the smallest known flowering monocot and is rich in protein. Despite its great potential as a biotech crop, basic research on Wolffia is in its infancy. Here, we generated the reference genome of a species of watermeal, W. australiana, and identified the genome-wide features that may contribute to its atypical anatomy and physiology, including the absence of roots, adaxial stomata development, and anaerobic life as a turion. In addition, we found evidence of extensive genome rearrangements that may underpin the specialized aquatic lifestyle of watermeal. Analysis of the gene inventory of this intriguing species helps explain the distinct characteristics of W. australiana and its unique evolutionary trajectory.

SUBMITTER: Park H 

PROVIDER: S-EPMC8298427 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature

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Genome of the world's smallest flowering plant, Wolffia australiana, helps explain its specialized physiology and unique morphology.

Park Halim H   Park Jin Hwa JH   Lee Yejin Y   Woo Dong U DU   Jeon Ho Hwi HH   Sung Yeon Woo YW   Shim Sangrea S   Kim Sang Hee SH   Lee Kyun Oh KO   Kim Jae-Yean JY   Kim Chang-Kug CK   Bhattacharya Debashish D   Yoon Hwan Su HS   Kang Yang Jae YJ  

Communications biology 20210722 1


Watermeal, Wolffia australiana, is the smallest known flowering monocot and is rich in protein. Despite its great potential as a biotech crop, basic research on Wolffia is in its infancy. Here, we generated the reference genome of a species of watermeal, W. australiana, and identified the genome-wide features that may contribute to its atypical anatomy and physiology, including the absence of roots, adaxial stomata development, and anaerobic life as a turion. In addition, we found evidence of ex  ...[more]

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