从黄瓜种质及其野生近缘种质中鉴定抗霜霉病新来源

IF 1 4区生物学 Q3 PLANT SCIENCES

Indian Journal of Genetics and Plant Breeding Pub Date : 2020-11-30 DOI:10.31742/ijgpb.80.4.8

J. Akhtar, D. Gautam, R. Nath, A. Gaikwad, K. V. Bhat, B. Mondal, G. Jat, Asif Iquebal, Badrish Tiwari, S. Archak

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引用次数: 1

摘要

本研究旨在确定黄瓜霜霉病抗性的新来源。在2017年和2018年期间，使用代表印度不同农业气候区的12个小白菜分离株，对分别为Cucumis sativus和C.hardwickii的16份材料进行了盆栽试验。来自北阿坎德邦德拉敦的IC331627登录显示，植物病害指数（PDI）在5.55-20.35%之间，2017年和2018年的平均PDI分别为11.56%和11.87%。因此，IC331627被鉴定为对五个分离株（Pc12、Pc17、Pc19、Pc21和Pc24）具有抗性，对一个分离株具有中等抗性（Pc22）。该抗性登录号C.hardwickii（IC331627）可用于开发定位群体，以定位赋予黄瓜霜霉病抗性的基因组区域。

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Identification of new resistant sources against downy mildew disease from a selected set of cucumber germplasm and its wild relatives

This study was undertaken to identify new sources of resistance against downy mildew of cucumber caused by Pseudoperonospora cubensis [(Berk. and Cart.) Rostow]. Pot experiments were conducted with 16 accessions each of Cucumis sativus and C. hardwickii during the years 2017 and 2018 using 12 isolates of P. cubensis representing different agroclimatic zones of India. The accession, IC331627 from Dehradun, Uttarakhand showed plant disease index (PDI) ranging from 5.55-20.35 per cent with an average PDI of 11.56 and 11.87 per cent during the years, 2017 and 2018, respectively. Hence, IC331627 was identified to be resistant against the five isolates of P. cubesis (Pc12, Pc17, Pc19, Pc21 and Pc24) and moderately resistant against one isolate (Pc22). This resistant accession C. hardwickii (IC331627) could be utilized to develop mapping population to map genomic regions conferring the resistance to downy mildew in cucumber.

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来源期刊

Indian Journal of Genetics and Plant Breeding PLANT SCIENCES-

CiteScore

1.80

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Advance the cause of genetics and plant breeding and to encourage and promote study and research in these disciplines in the service of agriculture; to disseminate the knowledge of genetics and plant breeding; provide facilities for association and conference among students of genetics and plant breeding and for encouragement of close relationship between them and those in the related sciences; advocate policies in the interest of the nation in the field of genetics and plant breeding, and facilitate international cooperation in the field of genetics and plant breeding.