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Genetic analysis of sugarcane brown rust resistance genes in wild sugarcane germplasm Erianthus rockii ‘Yundian 95-19’ and Erianthus rockii ‘Yundian 95-20’

Published online by Cambridge University Press:  25 June 2019

Rong-Yue Zhang
Affiliation:
Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, China
Wen-Feng Li
Affiliation:
Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, China
Ying-Kun Huang*
Affiliation:
Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, China
Xin Lu
Affiliation:
Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, China
Xiao-Yan Wang
Affiliation:
Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, China
Hong-Li Shan
Affiliation:
Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, China
Jie Li
Affiliation:
Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, China
Xiao-Yan Cang
Affiliation:
Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, China
Jiong Yin
Affiliation:
Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, China
Zhi-Ming Luo
Affiliation:
Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, China
*
*Corresponding author. E-mail: huangyk64@163.com

Abstract

We assessed inheritance of resistance to sugarcane brown rust (Puccinia melanocephala) in selfing F1 populations of wild sugarcane germplasm Erianthus rockii ‘Yundian 95-19’ and E. rockii ‘Yundian 95-20’. We tested parent and selfing F1 individuals for the brown rust resistance gene, Bru1, that has been shown to confer resistance to brown rust in sugarcane. The Bru1 gene was not detected in E. rockii ‘Yundian 95-19’, E. rockii ‘Yundian 95-20’ or their selfing F1 individuals, and we found there was segregation of resistance in the two selfing F1 populations (segregation ratio: 3:1). The results confirmed resistance in E. rockii ‘Yundian 95-19’ and E. rockii ‘Yundian 95-20’ to sugarcane brown rust is controlled by a novel, single dominant gene.

Type
Short Communication
Copyright
Copyright © NIAB 2019 

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Footnotes

These authors contributed equally to this work.

References

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Genetic analysis of sugarcane brown rust resistance genes in wild sugarcane germplasm Erianthus rockii ‘Yundian 95-19’ and Erianthus rockii ‘Yundian 95-20’
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Genetic analysis of sugarcane brown rust resistance genes in wild sugarcane germplasm Erianthus rockii ‘Yundian 95-19’ and Erianthus rockii ‘Yundian 95-20’
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