2015抗南方水稻黑条矮缩病水稻光温敏核不育系的筛选和鉴定 - 余守武

发布时间:2015-11-10 09:07:24

植物遗传资源学报2015,16(1):163-167Journal of Plant Genetic Resources DOI :10.13430/j.cnki.jpgr.2015.01.025抗南方水稻黑条矮缩病水稻光温敏核不育系的筛选和鉴定余守武1,2,范天云1,2,杜龙岗1,2,黄益峰1,2,陈珊宇1,2,葛帅2,麻人方2,洪晓富1,2,阮关海1,2(1浙江省农业科学院作物与核技术利用研究所,杭州310021;2浙江农科种业有限公司,杭州310021)摘要:对东乡野生稻(Oryza rufipogon Griff.)3个生态群落株系及协青早B //协青早B /东乡野生稻的BC 1F 6株系进行了南方水稻黑条矮缩病抗性鉴定,筛选出抗性较好的种质资源。利用筛选到的协青早B //协青早B /东乡野生稻抗性株系,与光温敏核不育系C47S 杂交转育,鉴定筛选到6份抗性较好的光温敏核不育系,为选育抗南方水稻黑条矮缩病的两系杂交稻组合奠定了材料基础;同时研究发现,来源于东乡野生稻的对南方水稻黑条矮缩病的抗性可能由数量性状基因控制。关键词:水稻;南方水稻黑条矮缩病;抗源筛选;光温敏核不育系Screening and Identification of Photo-Thermo-Sensitive Genic MaleSterile Lines against Southern Rice Black-Streaked Dwarf VirusYU Shou-wu 1,2,FAN Tian-yun 1,2,DU Long-gang 1,2,HUANG Yi-feng 1,2,CHEN Shan-yu 1,2,GE Shuai 2,MA Ren-fang 2,HONG Xiao-fu 1,2,RUAN Guan-hai 1,2(1Institute of Crop Science and Nuclear Technology Utilization ,Zhejiang Academy of Agricultural Sciences ,Hangzhou 310021;2Zhejiang Nongke Seed Co.,Ltd ,Hangzhou 310021)Abstract :Rice germplasm for the resistance to southern rice black streaked dwarf virus (SRBSDV )was screened from rice lines of three ecological populations of Dongxiang wild rice (Oryza rufipogon Griff.)and BC 1F 6lines of the cross Xieqingzao B //Xieqingzao B /Dongxiang wild rice.A resistant line identified from the BC 1F 6popu-lation was crossed to photo-thermo-sensitive genic male sterile line (PTGMS )C47S.Six PTGMS lines which were re-sistant or moderate resistant to SRBSDV were selected.It was also found that the SRBSDV resistance was normally distributed in the segregating populations ,indicating that the resistance to SRBSDV in Dongxiang wild rice was con-trolled by quantitative trait loci.Key words :rice ;southern rice black-streaked dwarf virus ;resistant germplasm ;photo-thermo-sensitive genicmale sterile line收稿日期:2014-03-12修回日期:2014-04-08网络出版日期:2014-12-11URL :http ://www.cnki.net /kcms /detail /11.4996.S.20141211.2203.008.html基金项目:浙江省公益性技术应用研究计划(2012C22016)第一作者研究方向为杂交水稻育种。E-mail :yusw08@163.com 通信作者:阮关海,研究方向为水稻良种繁育与推广。E-mail :ruanguanhai2008@163.com 由南方水稻黑条矮缩病毒(SRBSDV ,southern rice black-streaked dwarf virus )引起的南方水稻黑条矮缩病是周国辉等[1-2]于2001年首次在广东省阳江市发现的一种新的水稻病毒病。该病主要由白背飞虱传播,其病害症状与水稻黑条矮缩病不同,即病株高位分蘖及茎节部形成倒生须根。南方水稻黑条矮缩病扩散蔓延快且危害大,截至2009年,该病在湖南、湖北、江西和浙江等9省(自治区)水稻受害面积超过30万hm 2[3-4]。长江中、下游及江淮稻区可能成为下一个南方水稻黑条矮缩病的常发、重发区[5],对水稻等作物的生产安全构成了严重威胁。因此,加强对南方水稻黑条矮缩病的综合防治,尤其

2015抗南方水稻黑条矮缩病水稻光温敏核不育系的筛选和鉴定 - 余守武

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