Short communication: QTL mapping for ear tip-barrenness in maize

  • Junqiang Ding Henan Agricultural University, College of Agronomy. Zhengzhou 450002
  • Jinliang Ma Henan Agricultural University, College of Agronomy. Zhengzhou 450002
  • Jiafa Chen Henan Agricultural University, College of Agronomy. Zhengzhou 450002 http://orcid.org/0000-0002-5684-6692
  • Tangshun Ai Henan Agricultural University, College of Agronomy. Zhengzhou 450002
  • Zhimin Li Henan Agricultural University, College of Agronomy. Zhengzhou 450002
  • Zhiqiang Tian Henan Agricultural University, College of Agronomy. Zhengzhou 450002
  • Suowei Wu Henan Agricultural University, College of Agronomy. Zhengzhou 450002
  • Wei Chen Henan Agricultural University, College of Agronomy. Zhengzhou 450002
  • Jianyu Wu Henan Agricultural University, College of Life Sciences. No 65, Wenhua Road, Jinshui. Zhengzhou 450002
DOI: https://doi.org/10.5424/sjar/2016143-9325

Resumen

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.

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Citas

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Publicado
2016-08-31
Cómo citar
Ding, J., Ma, J., Chen, J., Ai, T., Li, Z., Tian, Z., Wu, S., Chen, W., & Wu, J. (2016). Short communication: QTL mapping for ear tip-barrenness in maize. Spanish Journal of Agricultural Research, 14(3), e07SC01. https://doi.org/10.5424/sjar/2016143-9325
Número
Vol. 14 Núm. 3 (2016)
Sección
Mejora vegetal, genética y recursos genéticos

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