Back

qKW9 encodes a pentatricopeptide repeat protein affecting photosynthesis and grain filling in maize

Yan, J.; Huang, J.; Lu, G.; Liu, L.; Raihan, M. S.; Xu, J.; Jian, L.; Zhao, L.; Tran, T. M.; Zhang, Q.; Liu, J.; Li, W.; Wei, C.; Braun, D. M.; Li, Q.; Fernie, A. R.; Jackson, D.

2019-11-20 plant biology
10.1101/847145 bioRxiv
Show abstract

Kernel weight is an important yield component in maize that was selected during domestication. Many kernel weight genes have been identified through mutant analysis, and are mostly involved in the biogenesis and functional maintenance of organelles or other fundamental cellular activities. However, only a limited number of loci underlying quantitative variation in kernel weight have been cloned. Here we characterize a maize kernel weight QTL, qKW9 and find that it encodes a DYW motif pentatricopeptide repeat protein involved in C-to-U editing of NdhB, a subunit of the chloroplast NADH dehydrogenase-like complex. In a null qKW9 background, C-to-U editing of NdhB was abolished, and photosynthesis was reduced, suggesting that qKW9 regulates kernel weight by controling the maternal source of photosynthate for grain filling. Characterization of qKW9 highlights the importance of optimizing photosynthesis on maize grain yield production.

Matching journals

The top 3 journals account for 50% of the predicted probability mass.

1
Plant Physiology
◐ 238 papers in training set
Top 0.2%
17.9%
Similar papers in this journal
2
Frontiers in Plant Science
○ 256 papers in training set
Top 0.2%
17.9%
Similar papers in this journal
3
The Plant Journal
○ 215 papers in training set
Top 0.1%
17.9%
Similar papers in this journal
50% of probability mass above
4
Journal of Experimental Botany
◐ 219 papers in training set
Top 1%
6.5%
Similar papers in this journal
5
Plant Direct
○ 95 papers in training set
Top 0.5%
5.3%
Similar papers in this journal
6
New Phytologist
○ 346 papers in training set
Top 2%
4.2%
7
Plant and Cell Physiology
◐ 52 papers in training set
Top 0.4%
3.9%
8
Plant Biotechnology Journal
○ 64 papers in training set
Top 0.4%
3.1%
9
The Plant Cell
◐ 161 papers in training set
Top 1%
3.1%
10
Plant Molecular Biology
○ 20 papers in training set
Top 0.4%
1.6%
11
Plant Cell Reports
○ 17 papers in training set
Top 0.5%
1.1%
12
Plant Science
○ 31 papers in training set
Top 0.8%
1.1%
13
Plant, Cell & Environment
○ 78 papers in training set
Top 2%
1.1%
14
Molecular Plant
○ 39 papers in training set
Top 0.9%
1.1%
15
Physiologia Plantarum
○ 39 papers in training set
Top 1%
1.1%
16
eLife
● 5828 papers in training set
Top 62%
1.0%
17
The Plant Genome
○ 57 papers in training set
Top 0.8%
1.0%
18
Plant Communications
○ 36 papers in training set
Top 0.9%
1.0%
19
Plant Physiology and Biochemistry
○ 20 papers in training set
Top 1%
0.6%
20
G3: Genes, Genomes, Genetics
◐ 252 papers in training set
Top 5%
0.6%
21
Plants
○ 43 papers in training set
Top 2%
0.6%

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.