New homologues of the Rpi-chc1 gene in wild and cultivated Solanum species

IF 1.3 4区农林科学 Q3 AGRONOMY

Crop Breeding and Applied Biotechnology Pub Date : 2023-01-01 DOI:10.1590/1984-70332023v23n3a30

Viktor Martynov, Mariya Beketova

引用次数: 0

Abstract

The Rpi-chc1 gene confers resistance to late blight (LB) in the wild South American species Solanum chacoense. The goal of this study was to enhance our insight into polymorphism of this gene in the genus Solanum, which is the source of valuable donors of resistance to LB. To this end, we analyzed 122 accessions of the working collection, consisting of potato cultivars, complex interspecific hybrids, and representatives of 11 wild Solanum species. We studied the polymorphism of the region of this gene that encodes the most polymorphic LRR domain. As a result, in the species S. chacoense, S. berthaultii, S. tuberosum, S. microdontum, and S. maglia we found previously unknown variants of the Rpi-chc1 gene, which differ in their amino acid sequence from both the functional and non-functional variant of the Rpi-chc1 gene. Therefore, the function of these homologues cannot be unambiguously predicted, but must be further studied.

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野生和栽培龙葵Rpi-chc1基因的新同源物

Rpi-chc1基因赋予南美野生物种龙葵(Solanum chacoense)抗晚疫病(LB)的能力。本研究的目的是加深我们对该基因在茄属(Solanum)中的多态性的了解，茄属是LB抗性的宝贵供体来源。为此，我们分析了122份工作收集的材料，包括马铃薯栽培品种、复杂的种间杂交品种和11种野生茄属的代表。我们研究了该基因编码多态性最多的LRR结构域的区域的多态性。因此，我们在沙河葡萄球菌、伯thaultii葡萄球菌、tuberosum葡萄球菌、microdontum葡萄球菌和s.m aglia葡萄球菌中发现了以前未知的Rpi-chc1基因变体，其氨基酸序列与Rpi-chc1基因的功能和非功能变体不同。因此，这些同源物的功能不能明确地预测，但必须进一步研究。

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 AGRONOMY-BIOTECHNOLOGY & APPLIED MICROBIOLOGY

CiteScore

2.70

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 The article must be unpublished.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.