| Autor: |
Junqiang Ding, Jinliang Ma, Jiafa Chen, Tangshun Ai, Zhimin Li, Zhiqiang Tian, Suowei Wu, Wei Chen, Jianyu Wu |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Spanish Journal of Agricultural Research, Vol 14, Iss 3, Pp e07-e07 (2016) |
| Druh dokumentu: |
article |
| ISSN: |
2171-9292 |
| DOI: |
10.5424/sjar/2016143-9325 |
| Popis: |
Barren tip on corn ear is an important agronomic trait in maize, which is highly associated with grain yield. Understanding the genetic basis of tip-barrenness may help to reduce the ear tip-barrenness in breeding programs. In this study, ear tip-barrenness was evaluated in two environments in a F2:3 population, and it showed significant genotypic variation for ear tip-barrenness in both environments. Using mixed-model composite interval mapping method, three additive effects quantitative trait loci (QTL) for ear tip-barrenness were mapped on chromosomes 2, 3 and 6, respectively. They explained 16.6% of the phenotypic variation, and no significant QTL × Environment interactions and digenic interactions were detected. The results indicated that additive effect was the main genetic basis for ear tip-barrenness in maize. This is the first report of QTL mapped for ear tip-barrenness in maize. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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