CN110896850A - 一种提高水稻抗稻瘟病能力的方法 - Google Patents

一种提高水稻抗稻瘟病能力的方法 Download PDF

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CN110896850A
CN110896850A CN201911312402.4A CN201911312402A CN110896850A CN 110896850 A CN110896850 A CN 110896850A CN 201911312402 A CN201911312402 A CN 201911312402A CN 110896850 A CN110896850 A CN 110896850A
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rice
blast resistance
generation
rice blast
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吴松权
冯艺川
初秀成
付瑜
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Jilin Zhongxin Green Rice Industry Group Co Ltd
TONGHUA CITY ACADEMY OF AGRICULTURAL SCIENCES
Yanbian University
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Jilin Zhongxin Green Rice Industry Group Co Ltd
TONGHUA CITY ACADEMY OF AGRICULTURAL SCIENCES
Yanbian University
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    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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Abstract

本发明公开一种提高水稻抗稻瘟病能力的方法,包括以下操作步骤:(1)将蒙古黄芪与水稻进行远缘杂交,套袋留种后得到F1代;(2)对F1代进行抗稻瘟病能力检测,筛选出具有抗稻瘟病能力和Cf2/Cf5基因突变的单株,套袋留种后得到F2代;(3)对F2代及其后代远缘杂交进行检测,筛选出Cf2/Cf5基因突变、抗稻瘟病和性状稳定的株系,自交留种。本发明提供的一种提高水稻抗稻瘟病的方法,是将具有极佳的抗逆性蒙古黄芪与水稻进行远缘杂交,得到了性状综合,抗稻瘟病性状稳定、高产的水稻株系,有效的提升了水稻的产量和质量,同时降低了制种成本。

Description

一种提高水稻抗稻瘟病能力的方法
技术领域
本发明属于植物遗传育种技术领域,具体涉及一种提高水稻抗稻瘟病能力的方法。
背景技术
水稻是主要的粮食作物,稻瘟病是水稻的主要病害之一,严重威胁着水稻的产量和质量。大量的生产实践证实,防治稻瘟病最有效的方法是选育和种植抗稻瘟病品种。但是,现有的常规水稻品种,难以满足抗稻瘟病育种的需求。远缘杂交是指植物分类上不同种、属或亲缘关系更远的物种之间的杂交。远缘杂交可以促进不同物种之间的基因交流,创造出更广泛的遗传变异,可获得近缘种或种内杂交所难以产生的新类型。蒙古黄芪是豆科黄耆属植物,多年生草本,高50-80厘米,分布于俄罗斯、朝鲜、蒙古和中国;在中国分布黑龙江(呼伦贝尔盟)、内蒙古、河北、山西、新疆和吉林等地,生长于向阳草地及山坡上。蒙古黄芪具有极佳的抗逆性如抗病、抗寒和抗旱等优点。
发明内容
本发明提供一种将蒙古黄芪与水稻进行远缘杂交,使水稻产生了对抗稻瘟病的抗性,进而提高水稻抗稻瘟病能力的方法。
本发明是通过以下技术方案实现的。
一种提高水稻抗稻瘟病能力的方法,包括以下操作步骤:
(1)将蒙古黄芪与水稻进行远缘杂交,套袋留种后得到F1代;
(2)对F1代进行抗稻瘟病能力检测,筛选出具有抗稻瘟病能力和Cf2/Cf5基因突变的单株,套袋留种后得到F2代;
(3)对F2代及其后代远缘杂交进行检测,筛选出Cf2/Cf5基因突变、抗稻瘟病和性状稳定的株系,自交留种。
具体地,上述步骤(1)中,蒙古黄芪与水稻进行远缘杂交的具体操作为:将受体水稻剪颖、去雄,授蒙古黄芪花粉后进行套袋,套袋0.8-1.2小时后再授水稻自身花粉,授粉后套袋,留种得到F1代。
具体地,上述步骤(1)中,所述抗稻瘟病的水稻为穗瘟率小于5%的水稻。
具体地,上述步骤(3)中,所述抗稻瘟病Cf2/Cf5基因的鉴定方法为:提取植株叶片DNA,利用上游引物CF-9F和下游引物CF-9R,进行聚合酶链式反应,扩增程序为:95℃,5min;94℃,45S;53℃,30S;72℃,90S,共35个循环;最后72℃延伸5min,抗病水稻中扩增出1822bp的特征条带,而感病水稻不能扩增出。
具体地,所述上游引物CF-9F的基因序列为:TGGTGAATCTGCTGAACACAG;
所述下游引物CF-9R的基因序列为:TTGTCGTGTATCCTATCAAAGAA。
本发明还提供一种水稻产生抗稻瘟病的方法在建立水稻品系中的应用。
由以上的技术方案可知,本发明的有益效果是:
本发明提供的一种提高水稻抗稻瘟病能力的方法,是将具有极佳的抗逆性蒙古黄芪与水稻进行远缘杂交,得到了性状综合,抗稻瘟病性状稳定、高产的水稻株系,有效的提升了水稻的产量和质量,同时降低了制种成本。
附图说明
图1为抗稻瘟病植株的Cf2/Cf5基因特异引物PCR结果。
具体实施方式
下面将结合实施例对本发明的实施方案进行详细描述,但是本领域技术人员将会理解,下列实施例仅用于说明本发明,而不应视为限制本发明的范围。实施例中未注明具体条件者,按照常规条件或制造商建议的条件进行。所用试剂或仪器未注明生产厂商者,均为可以通过市售购买获得的常规产品。
实施例1
一种提高水稻抗稻瘟病能力的方法,包括以下操作步骤:
(1)将蒙古黄芪与水稻进行远缘杂交,套袋留种后得到F1代,其中蒙古黄芪与水稻进行远缘杂交的具体操作为:将受体水稻剪颖、去雄,授蒙古黄芪花粉后进行套袋,套袋0.8-1.2小时后再授水稻自身花粉,授粉后套袋,留种得到F1代;
(2)对F1代进行抗稻瘟病能力检测,筛选出具有抗稻瘟病能力和Cf2/Cf5基因突变的单株,套袋留种后得到F2代,其中抗稻瘟病的水稻为穗瘟率小于5%的水稻;
(3)对F2代及其后代远缘杂交进行检测,检测结果如图1所示,筛选出Cf2/Cf5基因突变、抗稻瘟病和性状稳定的株系,自交留种,所述抗稻瘟病Cf2/Cf5基因的鉴定方法为:提取植株叶片DNA,利用上游引物CF-9F(TGGTGAATCTGCTGAACACAG)和下游引物CF-9R(TTGTCGTGTATCCTATCAAAGAA),进行聚合酶链式反应,扩增程序为:95℃,5min;94℃,45S;53℃,30S;72℃,90S,共35个循环;最后72℃延伸5min,抗病水稻中扩增出1822bp的特征条带,而感病水稻不能扩增出。
以上所描述的实施例是本发明一部分实施例,而不是全部的实施例。本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围,而是仅仅表示本发明的选定实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。

Claims (6)

1.一种提高水稻抗稻瘟病能力的方法,其特征在于,包括以下操作步骤:
(1)将蒙古黄芪与水稻进行远缘杂交,套袋留种后得到F1代;
(2)对F1代进行抗稻瘟病能力检测,筛选出具有抗稻瘟病能力和Cf2/Cf5基因突变的单株,套袋留种后得到F2代;
(3)对F2代及其后代远缘杂交进行检测,筛选出Cf2/Cf5基因突变、抗稻瘟病和性状稳定的株系,自交留种。
2.根据权利要求1所述的一种提高水稻抗稻瘟病能力的方法,其特征在于,上述步骤(1)中,蒙古黄芪与水稻进行远缘杂交的具体操作为:将受体水稻剪颖、去雄,授蒙古黄芪花粉后进行套袋,套袋0.8-1.2小时后再授水稻自身花粉,授粉后套袋,留种得到F1代。
3.根据权利要求1所述的一种提高水稻抗稻瘟病能力的方法,其特征在于,上述步骤(1)中,所述抗稻瘟病的水稻为穗瘟率小于5%的水稻。
4.根据权利要求1所述的一种提高水稻抗稻瘟病能力的方法,其特征在于,上述步骤(3)中,所述抗稻瘟病Cf2/Cf5基因的鉴定方法为:提取植株叶片DNA,利用上游引物CF-9F和下游引物CF-9R,进行聚合酶链式反应,扩增程序为:95℃,5min;94℃,45S;53℃,30S;72℃,90S,共35个循环;最后72℃延伸5min,抗病水稻中扩增出1822bp的特征条带,而感病水稻不能扩增出。
5.根据权利要求4所述的一种提高水稻抗稻瘟病能力的方法,其特征在于,所述上游引物CF-9F的基因序列为:TGGTGAATCTGCTGAACACAG;
所述下游引物CF-9R的基因序列为:TTGTCGTGTATCCTATCAAAGAA。
6.一种如权利要求1-5中任一项所述使水稻产生抗稻瘟病的方法在建立水稻品系中的应用。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1493692A (zh) * 2002-10-28 2004-05-05 华中农业大学 水稻抗白叶枯病基因Xa26(t)
CN1498893A (zh) * 2002-11-11 2004-05-26 华中农业大学 水稻抗白叶枯病基因Xa4
US6963020B1 (en) * 1999-04-30 2005-11-08 National Institute Of Agrobiological Sciences DNA polymorphism-based methods for identifying field resistance of rice to rice blast
CN1817097A (zh) * 2006-01-10 2006-08-16 江苏丘陵地区镇江农业科学研究所 一种抗条纹叶枯病水稻镇稻9号的育种方法
CN110574676A (zh) * 2019-07-22 2019-12-17 延边大学 一种高抗氧化能力的功能型水稻制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6963020B1 (en) * 1999-04-30 2005-11-08 National Institute Of Agrobiological Sciences DNA polymorphism-based methods for identifying field resistance of rice to rice blast
CN1493692A (zh) * 2002-10-28 2004-05-05 华中农业大学 水稻抗白叶枯病基因Xa26(t)
CN1498893A (zh) * 2002-11-11 2004-05-26 华中农业大学 水稻抗白叶枯病基因Xa4
CN1817097A (zh) * 2006-01-10 2006-08-16 江苏丘陵地区镇江农业科学研究所 一种抗条纹叶枯病水稻镇稻9号的育种方法
CN110574676A (zh) * 2019-07-22 2019-12-17 延边大学 一种高抗氧化能力的功能型水稻制备方法

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Application publication date: 20200324