品种与技术

优质抗病水稻新品种粤标5号的选育及特征特性

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  • 1 广东省农业科学院水稻研究所/广东省水稻育种新技术重点实验室,广州 510640;2 华南农业大学农学院,广州 510642

网络出版日期: 2016-09-20

基金资助

国家自然科学基金(31471175);广东省自然科学基金(S2013010012850);广东省科技计划(2015A 020209043,2014B070706013,2015B020231002)

Breeding and Characteristics of a New Rice Variety Yuebiao 5 with Disease Resistance and Fine Grain Quality

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Online published: 2016-09-20

摘要

粤标5号是应用分子标记辅助选择与系谱选育相结合的方法,将稻瘟病广谱抗病基因Pi2导入粤丰占中,经多代选择育成的优质抗病常规水稻新品种。该品种高抗稻瘟病,对广东的优势菌群中B、中C的抗性频率分别为93.8%~100%、92.9%~100%,丰产性较好,米质达国标优质1级,抗倒性强。2015年5月通过广东省农作物新品种审定。

本文引用格式

何秀英1,王玲2,陈钊明1,林菲2,程永盛1, 陈粤汉1,刘维1,卢东柏1,潘庆华2*,廖耀平1* . 优质抗病水稻新品种粤标5号的选育及特征特性[J]. 中国稻米, 2016 , 22(5) : 112 -113 . DOI: 10.3969/j.issn.1006-8082.2016.05.032

Abstract

Yuebiao 5 is a new conventional rice variety with disease resistance and fine grain quality. It was derived from the application of marker-assisted selection and pedigree selection, which import the blast resistant gene Pi2 into the rice variety Yuefengzhan, through backcross, selfing, agronomic trait selection and molecular marker assisted selection over years. The new variety has the following excellent characteristics: high resistance to rice blast, high yield, grain quality of GB-quality 1, lodging resistance. The resistant rate of Guangdong vantage blast population, Zhong B and Zhong C were 93.8%~100% and 92.9%~100%, respectively. It was approved by Guangdong Variety Approval Committee in May 2015, and has a good promotion application prospect.

参考文献

[1] Zhou B, Qu S, Liu G, et al. The eight amino-acid differences within three leucine-rich repeats between Pi2 and Piz-t resistance proteins determine the resistance specificity to Magnaporthe grisea [J]. Mol Plant Microbe Interact, 2006, 19(11): 1 216-1 228. [2] Chen H L, Chen B T, Zhang D P, et al. Pathotypes of Pyricularia grisea in rice fields of central and southern China[J]. Plant Disease, 2001, 85(8): 843-850. [3] 廖耀平,陈钊明,何秀英,等. 优质高产水稻新品种粤丰占[J]. 中国稻米,2001(5):23. [4] Deng Y, Zhu X, Shen Y, et al. Genetic characterization and fine mapping of the blast resistance locus Pigm(t) tightly linked to Pi2 and Pi9 in a broad-spectrum resistant Chinese variety[J]. Theor Appl Genet, 2006, 113: 705-713.
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