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Article

Natural variation in Miniature5 determines mitochondrial nad1 splicing and seed development in maize.

Journal of genetics and genomics = Yi chuan xue bao - 1 Sept 2026

Wang Yuyu, Li Rongrong, Deng Jiajia, Wang Lizhen, Tang Zhiyi, Li Jiahui, Mu Yingbin, Yang Mingliang, Wu Fan, Lei Jie, Luan Xiaoyue, Chen Hongyu, Tang Jihua, Shen Qingwen, Wang Guifeng

Abstract excerpt

Seed size is a key determinant of cereal grain yield, but natural variations in defective-kernel genes have rarely been applied in maize breeding. Here, we report the positional cloning of maize Miniature5 (Mn5), which encodes a mitochondrial-targeted P-class pentatricopeptide repeat (PPR) protein. Further analysis shows that a missense mutation of Mn5, Mn5Val109, presents in maize populations and correlates with...

Read the complete abstract on PubMed

Topics

Zea mays
Seeds
Mitochondria
RNA Splicing
Plant Proteins
Mitochondrial Proteins

Methodology Data sources Editorial policy Privacy Delete account & data About Contact Helena Bioinformatics

Introns

Gene Expression Regulation, Plant

Electron Transport Complex I

Genetic Variation

Source

Identifiers

PMID: 41933698
DOI: 10.1016/j.jgg.2026.03.021

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 20 Oct 2026.

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Natural variation in Miniature5 determines mitochondrial nad1 splicing and seed development in maize.PMID 41933698Read ↗

Maize Dek37 Encodes a P-type PPR Protein That Affects cis-Splicing of Mitochondrial nad2 Intron 1 and Seed Development.Semantic proximity Read ↗

The Mitochondrial Pentatricopeptide Repeat Protein PPR18 Is Required for the cis-Splicing of nad4 Intron 1 and Essential to Seed Development in Maize.Semantic proximity Read ↗

Mitochondrial Function and Maize Kernel Development Requires Dek2, a Pentatricopeptide Repeat Protein Involved in nad1 mRNA Splicing.Semantic proximity Read ↗

EMPTY PERICARP11 serves as a factor for splicing of mitochondrial nad1 intron and is required to ensure proper seed development in maize.Semantic proximity Read ↗

E+ subgroup PPR protein defective kernel 36 is required for multiple mitochondrial transcripts editing and seed development in maize and Arabidopsis.Semantic proximity Read ↗

Small kernel 1 encodes a pentatricopeptide repeat protein required for mitochondrial nad7 transcript editing and seed development in maize (Zea mays) and rice (Oryza sativa).Semantic proximity Read ↗

The novel E-subgroup pentatricopeptide repeat protein DEK55 is responsible for RNA editing at multiple sites and for the splicing of nad1 and nad4 in maize.Semantic proximity Read ↗

Empty pericarp5 encodes a pentatricopeptide repeat protein that is required for mitochondrial RNA editing and seed development in maize.Semantic proximity Read ↗

The Mitochondrion-Targeted PENTATRICOPEPTIDE REPEAT78 Protein Is Required for nad5 Mature mRNA Stability and Seed Development in Maize.Semantic proximity Read ↗

PPR20 Is Required for the cis-Splicing of Mitochondrial nad2 Intron 3 and Seed Development in Maize.Semantic proximity Read ↗

The pentatricopeptide repeat protein EMP9 is required for mitochondrial ccmB and rps4 transcript editing, mitochondrial complex biogenesis and seed development in maize.Semantic proximity Read ↗

EMP18 functions in mitochondrial atp6 and cox2 transcript editing and is essential to seed development in maize.Semantic proximity Read ↗

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