Effects of DEP1 on grain yield and grain quality in the background of two japonica rice (Oryza sativa) cultivars

Plant architecture is an accessible approach to achieving high‐yield potential. The DENSE AND ERECT PANICLE 1 (DEP1) gene regulating panicle morphology, grain number per panicle, and nitrogen uptake and metabolism has been widely used for the breeding of high‐yield rice in northern Chinese japonica...

Full description

Saved in:
Bibliographic Details
Published inPlant breeding Vol. 139; no. 3; pp. 608 - 617
Main Authors Wang, YuanZheng, Zhang, Nan, Chen, HongWei, Wang, Feng, Huang, YuanCai, Jia, BaoYan, Wang, Shu, Wang, Yun, Xu, ZhengJin, Ahn, Sang Nag
Format Journal Article
LanguageEnglish
Published Berlin Wiley Subscription Services, Inc 01.06.2020
Subjects
appearance (quality)
background effect
Construction
Cooking
cooking quality
Crop yield
Cultivars
DEP1
Eating quality
gain yield
genes
genetic background
Genetic effects
Grain
grain quality
grain yield
information
ingestion
marker-assisted selection
metabolism
Morphology
near‐isogenic lines
nitrogen
Oryza sativa
panicles
plant architecture
Plant breeding
processing quality
Rice
Online AccessGet full text

Cover

More Information
Summary:Plant architecture is an accessible approach to achieving high‐yield potential. The DENSE AND ERECT PANICLE 1 (DEP1) gene regulating panicle morphology, grain number per panicle, and nitrogen uptake and metabolism has been widely used for the breeding of high‐yield rice in northern Chinese japonica varieties. However, there has been no consensus on the genetic effects of dep1 on grain yield and quality under different genetic backgrounds and growing environments. In the present study, we developed two sets of near‐isogenic lines (NILs) of DEP1 (AKI‐dep1, AKI‐DEP1, LG5‐dep1 and LG5‐DEP1), each carrying the DEP1 region from either 'Liaogeng5' (LG5) or 'Akitakomachi' (AKI) in the AKI and LG5 backgrounds. Our results demonstrated that AKI‐dep1/LG5‐dep1 exhibited erect panicle and enhanced grain number per panicle, thereby consequently increasing grain yield, whereas they possessed inferior grain appearance compared with AKI‐DEP1/LG5‐DEP1 in the same background. However, the effects of dep1 on grain processing quality and eating and cooking quality varied with the background. These results provide useful information for high‐yield erect panicle rice breeding by marker‐assisted selection.
Bibliography:Funding information
This work was funded by the National Key Research and Development Program of China (2016YFD0300104), the Key Laboratory Project of the Department of Education of Liaoning Province, China (LZ2015065) and the National Natural Science Foundation of China (31671602).
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
content type line 23
ISSN:0179-9541
1439-0523
DOI:10.1111/pbr.12788