GmNAP1 is essential for trichome and leaf epidermal cell development in soybean.

Publisher: Kluwer Academic Country of Publication: Netherlands NLM ID: 9106343 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1573-5028 (Electronic) Linking ISSN: 01674412 NLM ISO Abbreviation: Plant Mol Biol Subsets: MEDLINE

Publication: Dordrecht : Kluwer Academic
Original Publication: The Hague ; Boston : Martinus Nijhoff/Dr. W. Junk, 1981-

Glycine max/*genetics ; Trichomes/*genetics; Gene Expression Regulation, Plant ; Introns/genetics ; Mutation/genetics ; Plant Proteins/genetics

Key Message: Map-based cloning revealed that two novel soybean distorted trichome mutants were due to loss function of GmNAP1 gene, which affected the trichome morphology and pavement cell ploidy by regulating actin filament assembly. Trichomes increase both biotic and abiotic stress resistance in soybean. In this study, Gmdtm1-1 and Gmdtm1-2 mutants with shorter trichomes and bigger epidermal pavement cells were isolated from an ethyl methylsulfonate mutagenized population. Both of them had reduced plant height and smaller seeds. Map-based cloning and bulked segregant analysis identified that a G-A transition at the 3' boundary of the sixth intron of Glyma.20G019300 in the Gmdtm1-1 mutant and another G-A transition mutation at the 5' boundary of the fourteenth intron of Glyma.20G019300 in Gmdtm1-2; these mutations disrupted spliceosome recognition sites creating truncated proteins. Glyma.20G019300 encodes a Glycine max NCK-associated protein 1 homolog (GmNAP1) in soybean. Further analysis revealed that the GmNAP1 involved in actin filament assembling and genetic information processing pathways during trichome and pavement cell development. This study shows that GmNAP1 plays an important role in soybean growth and development and agronomic traits.

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ZDRW-ZS-2019-2-02 Key Research Program of Chinese Academy of Sciences; 2016YFD0100401 The National Key Research and Development Project

Keywords: GmNAP1; Pavement cell; Soybean; Trichome

0 (Plant Proteins)

Date Created: 20200517 Date Completed: 20200817 Latest Revision: 20231213

20231215

PMC7385028

10.1007/s11103-020-01013-y

32415514