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Home > Archive>Volume 22, Issue 6, 2021 >1651-1658. DOI:10.13430/j.cnki.jpgr.20210423001
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Genetic Identification and Preliminary Mapping of a Resistance Gene Against Southern Rice Black Streaked Dwarf Virus
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Affiliation:

1Plant Protection Research Institute Guangdong Academy of Agricultural Sciences,Guangzhou 510640; 2 Wuhan Greenfafa Institute of Novel Genechip Research and Development Co. Ltd,Wuhan 430064; 3 Zhuhai Modern Agricultural Development Center,Zhuhai 519000

Fund Project:

Breeding new rice varieties with super high yield and tolerance to adversities (2018B020202004)，Rice innovation team of modern agricultural technology system in Guangdong Province（2020KJ105)

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    Abstract:

    Southern rice black-streaked dwarf virus disease (SRBSDVD) is one of the most serious viral diseases. Exploration of resistant germplasm resource and identification of resistance-conferring gene become of interest in rice breeding. Here, by testing for SRBSDVD resistance in a breeding population by artificial inoculation under both field and greenhouse conditions followed by RT-PCR detection, individual plants showing a segregation on resistance and susceptibility were observed implying the presence of a new recessive virus resistance locus. We assembled the resistance and susceptibility bulks by pooling the resistant and susceptible plants, respectively. By genotyping using the whole genome breeding gene chip (GSR 40K) technology, this resistance gene against southern rice black-streaked dwarf virus disease was delimited in a lower resolution. Collectively, this study provided a resistance resource/gene valuable in resistance breeding against southern black streaked dwarf disease.

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History
  • Received:April 23,2021
  • Revised:July 15,2021
  • Adopted:July 19,2021
  • Online: November 04,2021
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