Caninde2/Milan: promising wheat line to discover novel genes for resistance to wheat blast

IF 1.5 4区农林科学 Q2 Agricultural and Biological Sciences

Crop Breeding and Applied Biotechnology Pub Date : 2022-01-01 DOI:10.1590/1984-70332022v22n2a11

L. Téllez, A. Chávez, Pastor E. Pérez-Estigarribia, Magaliz Reyes, C. Cazal, Adam F. Heesacker, M. Kohli

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引用次数: 2

Abstract

Wheat blast disease is responsible for severe production losses. The disease resistance associated with the 2NS/2AS translocation is effective, but its level can be variable. In this study, we evaluated the presence of 2NS/2AS translocation in 310 advanced breeding lines from six crosses (Caninde 2/Milan, Milan/Caninde 2, Maringa/Milan, Milan/Maringa, Ciano79/Milan and Milan/ Ciano79), and also studied their wheat blast reaction in the field to three virulent pathogen strains (P13-009, P14-031 and P14-039) collected in Paraguay. Advanced lines of two crosses (Caninde 2/Milan and Milan/Caninde 2) yielded the highest number of blast-resistant entries without 2NS/2AS translocation. Earlier studies have shown Caninde 2 to be a moderately susceptible line, which in combination with Milan, is probably adding non-2NS/2AS type resistance to these crosses. Our result indicates that such a resistance is based on several additive factors derived from multiple sources, which need to be explored further and also used to develop more durable wheat blast-resistant germplasm in the future.

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Caninde2/米兰:有希望的小麦品系发现抗小麦稻瘟病的新基因

小麦稻瘟病是造成严重生产损失的主要原因。与2NS/2AS易位相关的抗病性是有效的，但其水平可能是可变的。本研究对来自6个杂交组合(Caninde 2/Milan、Milan/Caninde 2、Maringa/Milan、Milan/Maringa、Ciano79/Milan和Milan/ Ciano79)的310个高级选育品系进行了2NS/2AS易位评价，并研究了它们对巴拉圭采集的3种毒力毒株(P13-009、P14-031和P14-039)的田间小麦瘟病反应。两个杂交品种(Caninde 2/Milan和Milan/Caninde 2)的高级系在没有2NS/2AS易位的情况下获得了最多的抗爆品系。早期的研究表明，Caninde 2是一个中等易感的品种，与米兰组合在一起，可能会给这些杂交增加非2ns /2AS型抗性。我们的研究结果表明，这种抗性是基于来自多个来源的几个附加因素，需要进一步探索，并在未来用于开发更持久的小麦抗稻瘟病种质。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Crop Breeding and Applied Biotechnology 农林科学-农艺学

CiteScore

2.40

自引率

13.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The CBAB – CROP BREEDING AND APPLIED BIOTECHNOLOGY (ISSN 1984-7033) – is the official quarterly journal of the Brazilian Society of Plant Breeding, abbreviated CROP BREED APPL BIOTECHNOL. It publishes original scientific articles, which contribute to the scientific and technological development of plant breeding and agriculture. Articles should be to do with basic and applied research on improvement of perennial and annual plants, within the fields of genetics, conservation of germplasm, biotechnology, genomics, cytogenetics, experimental statistics, seeds, food quality, biotic and abiotic stress, and correlated areas. The article must be unpublished. Simultaneous submitting to another periodical is ruled out. Authors are held solely responsible for the opinions and ideas expressed, which do not necessarily reflect the view of the Editorial board. However, the Editorial board reserves the right to suggest or ask for any modifications required. The journal adopts the Ithenticate software for identification of plagiarism. Complete or partial reproduction of articles is permitted, provided the source is cited. All content of the journal, except where identified, is licensed under a Creative Commons attribution-type BY. All articles are published free of charge. This is an open access journal.