Enhanced virus resistance in transgenic maize expressing a dsRNA-specific endoribonuclease gene from E. coli.

Maize rough dwarf disease (MRDD), caused by several Fijiviruses in the family Reoviridae, is a global disease that is responsible for substantial yield losses in maize. Although some maize germplasm have low levels of polygenic resistance to MRDD, highly resistant cultivated varieties are not availa...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Xiuling Cao, Yingui Lu, Dianping Di, Zhiyan Zhang, He Liu, Lanzhi Tian, Aihong Zhang, Yanjing Zhang, Lindan Shi, Bihong Guo, Jin Xu, Xifei Duan, Xianbing Wang, Chenggui Han, Hongqin Miao, Jialin Yu, Dawei Li
Formato: article
Lenguaje:EN
Publicado: Public Library of Science (PLoS) 2013
Materias:
R
Q
Acceso en línea:https://doaj.org/article/0dc09b803b5b4c41926354fc2225e16e
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:0dc09b803b5b4c41926354fc2225e16e
record_format dspace
spelling oai:doaj.org-article:0dc09b803b5b4c41926354fc2225e16e2021-11-18T07:49:54ZEnhanced virus resistance in transgenic maize expressing a dsRNA-specific endoribonuclease gene from E. coli.1932-620310.1371/journal.pone.0060829https://doaj.org/article/0dc09b803b5b4c41926354fc2225e16e2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23593318/?tool=EBIhttps://doaj.org/toc/1932-6203Maize rough dwarf disease (MRDD), caused by several Fijiviruses in the family Reoviridae, is a global disease that is responsible for substantial yield losses in maize. Although some maize germplasm have low levels of polygenic resistance to MRDD, highly resistant cultivated varieties are not available for agronomic field production in China. In this work, we have generated transgenic maize lines that constitutively express rnc70, a mutant E. coli dsRNA-specific endoribonuclease gene. Transgenic lines were propagated and screened under field conditions for 12 generations. During three years of evaluations, two transgenic lines and their progeny were challenged with Rice black-streaked dwarf virus (RBSDV), the causal agent of MRDD in China, and these plants exhibited reduced levels of disease severity. In two normal years of MRDD abundance, both lines were more resistant than non-transgenic plants. Even in the most serious MRDD year, six out of seven progeny from one line were resistant, whereas non-transgenic plants were highly susceptible. Molecular approaches in the T12 generation revealed that the rnc70 transgene was integrated and expressed stably in transgenic lines. Under artificial conditions permitting heavy virus inoculation, the T12 progeny of two highly resistant lines had a reduced incidence of MRDD and accumulation of RBSDV in infected plants. In addition, we confirmed that the RNC70 protein could bind directly to RBSDV dsRNA in vitro. Overall, our data show that RNC70-mediated resistance in transgenic maize can provide efficient protection against dsRNA virus infection.Xiuling CaoYingui LuDianping DiZhiyan ZhangHe LiuLanzhi TianAihong ZhangYanjing ZhangLindan ShiBihong GuoJin XuXifei DuanXianbing WangChenggui HanHongqin MiaoJialin YuDawei LiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 4, p e60829 (2013)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Xiuling Cao
Yingui Lu
Dianping Di
Zhiyan Zhang
He Liu
Lanzhi Tian
Aihong Zhang
Yanjing Zhang
Lindan Shi
Bihong Guo
Jin Xu
Xifei Duan
Xianbing Wang
Chenggui Han
Hongqin Miao
Jialin Yu
Dawei Li
Enhanced virus resistance in transgenic maize expressing a dsRNA-specific endoribonuclease gene from E. coli.
description Maize rough dwarf disease (MRDD), caused by several Fijiviruses in the family Reoviridae, is a global disease that is responsible for substantial yield losses in maize. Although some maize germplasm have low levels of polygenic resistance to MRDD, highly resistant cultivated varieties are not available for agronomic field production in China. In this work, we have generated transgenic maize lines that constitutively express rnc70, a mutant E. coli dsRNA-specific endoribonuclease gene. Transgenic lines were propagated and screened under field conditions for 12 generations. During three years of evaluations, two transgenic lines and their progeny were challenged with Rice black-streaked dwarf virus (RBSDV), the causal agent of MRDD in China, and these plants exhibited reduced levels of disease severity. In two normal years of MRDD abundance, both lines were more resistant than non-transgenic plants. Even in the most serious MRDD year, six out of seven progeny from one line were resistant, whereas non-transgenic plants were highly susceptible. Molecular approaches in the T12 generation revealed that the rnc70 transgene was integrated and expressed stably in transgenic lines. Under artificial conditions permitting heavy virus inoculation, the T12 progeny of two highly resistant lines had a reduced incidence of MRDD and accumulation of RBSDV in infected plants. In addition, we confirmed that the RNC70 protein could bind directly to RBSDV dsRNA in vitro. Overall, our data show that RNC70-mediated resistance in transgenic maize can provide efficient protection against dsRNA virus infection.
format article
author Xiuling Cao
Yingui Lu
Dianping Di
Zhiyan Zhang
He Liu
Lanzhi Tian
Aihong Zhang
Yanjing Zhang
Lindan Shi
Bihong Guo
Jin Xu
Xifei Duan
Xianbing Wang
Chenggui Han
Hongqin Miao
Jialin Yu
Dawei Li
author_facet Xiuling Cao
Yingui Lu
Dianping Di
Zhiyan Zhang
He Liu
Lanzhi Tian
Aihong Zhang
Yanjing Zhang
Lindan Shi
Bihong Guo
Jin Xu
Xifei Duan
Xianbing Wang
Chenggui Han
Hongqin Miao
Jialin Yu
Dawei Li
author_sort Xiuling Cao
title Enhanced virus resistance in transgenic maize expressing a dsRNA-specific endoribonuclease gene from E. coli.
title_short Enhanced virus resistance in transgenic maize expressing a dsRNA-specific endoribonuclease gene from E. coli.
title_full Enhanced virus resistance in transgenic maize expressing a dsRNA-specific endoribonuclease gene from E. coli.
title_fullStr Enhanced virus resistance in transgenic maize expressing a dsRNA-specific endoribonuclease gene from E. coli.
title_full_unstemmed Enhanced virus resistance in transgenic maize expressing a dsRNA-specific endoribonuclease gene from E. coli.
title_sort enhanced virus resistance in transgenic maize expressing a dsrna-specific endoribonuclease gene from e. coli.
publisher Public Library of Science (PLoS)
publishDate 2013
url https://doaj.org/article/0dc09b803b5b4c41926354fc2225e16e
work_keys_str_mv AT xiulingcao enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT yinguilu enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT dianpingdi enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT zhiyanzhang enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT heliu enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT lanzhitian enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT aihongzhang enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT yanjingzhang enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT lindanshi enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT bihongguo enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT jinxu enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT xifeiduan enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT xianbingwang enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT chengguihan enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT hongqinmiao enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT jialinyu enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
AT daweili enhancedvirusresistanceintransgenicmaizeexpressingadsrnaspecificendoribonucleasegenefromecoli
_version_ 1718422893862322176