Campus Units

Agronomy

Document Type

Article

Publication Version

Published Version

Publication Date

2017

Journal or Book Title

PloS ONE

Volume

12

Issue

12

First Page

e0189441

DOI

10.1371/journal.pone.0189441

Abstract

Leaf width is an important component of plant architecture that affects light capture during photosynthesis and wind circulation under dense planting conditions. To improve understanding of the genetic mechanisms involved in leaf width at different positions, a comprehensive evaluation using the RIL (Recombinant Inbred Line) and IF2 (Immortalized F2) populations and a subsequent meta-analysis were performed. Forty-seven QTL associated with leaf width at different positions below the tassel were detected. The individual effects of QTL explained 3.5% to 17.0% of the observed phenotypic variation, and ten QTL explained over 10%. The initial QTL were integrated into eight mQTL (meta-QTL) through a meta-analysis. Our results suggested that leaf widths at different positions may be affected by several of the same mQTL and may also be regulated by many different mQTL. These results provide useful information for breeding high density tolerant inbred lines and hybrid cultivars, as well as for using marker-assisted selection for important mQTL.

Comments

This article is published as Liu, Ruixiang, Qingchang Meng, Fei Zheng, Lingjie Kong, Jianhua Yuan, and Thomas Lübberstedt. "Genetic mapping of QTL for maize leaf width combining RIL and IF2 populations." PloS one 12, no. 12 (2017): e0189441. doi: 10.1371/journal.pone.0189441. Posted with permission.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Copyright Owner

The Authors

Language

en

File Format

application/pdf

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