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Salient Findings on Host Range, Resistance Screening, and Molecular Studies on Sterility Mosaic Disease of Pigeonpea Induced by Pigeonpea sterility mosaic viruses (PPSMV-I and PPSMV-II)

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Relation http://oar.icrisat.org/12576/
https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2022.838047/full
https://doi.org/10.3389/fmicb.2022.838047
 
Title Salient Findings on Host Range, Resistance Screening, and Molecular Studies on Sterility Mosaic Disease of Pigeonpea Induced by Pigeonpea sterility mosaic viruses (PPSMV-I and PPSMV-II)
 
Creator Sayiprathap, B R
Patibanda, A K
Kumari, V P
Jayalalitha, K
Ramappa, H K
Rajeswari, E
Karthiba, L
Saratbabu, K
Sharma, M
Sudini, H K
 
Subject Pigeonpea
Plant Pathology
 
Description Two distinct emaraviruses, Pigeonpea sterility mosaic virus-I (PPSMV-I) and Pigeonpea sterility mosaic virus-II (PPSMV-II) were found to be associated with sterility mosaic disease (SMD) of pigeonpea [Cajanus cajan (L.) Millsp.]. The host range of both these viruses and their vector are narrow, confined to Nicotiana benthamiana identified through mechanical transmission, and to Phaseolus vulgaris cvs. Top Crop, Kintoki, and Bountiful (F: Fabaceae) through mite transmission. A weed host Chrozophora rottleri (F: Euphorbiaceae) was also infected and tested positive for both the viruses in RT-PCR. Among the wild Cajanus species tested, Cajanus platycarpus accessions 15661, 15668, and 15671, and Cajanus scarabaeoides accessions 15683, 15686, and 15922 were infected by both the viruses and mite vector suggesting possible sources of SMD inoculum. Though accession 15666 of C. platycarpus, 15696 of C. scarabaeoides, and 15639 of Cajanus lanceolatus were infected by both the viruses, no mite infestation was observed on them. Phylogenetic analysis of nucleotide sequences of RNA-1 and RNA-2 of PPSMV-I and PPSMV-II isolates in southern India revealed significant divergence especially PPSMV-II, which is closely related to the Fig mosaic virus (FMV) than PPSMV-I. In multilocation testing of pigeonpea genotypes for their broad-based resistance to SMD for two consecutive years, genotypes ICPL-16086 and ICPL-16087 showed resistance reaction (
 
Publisher Frontiers Media
 
Date 2022-04-01
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights cc_by
 
Identifier http://oar.icrisat.org/12576/1/Frontiers%20in%20Microbiology_13_1-13_2022.pdf
Sayiprathap, B R and Patibanda, A K and Kumari, V P and Jayalalitha, K and Ramappa, H K and Rajeswari, E and Karthiba, L and Saratbabu, K and Sharma, M and Sudini, H K (2022) Salient Findings on Host Range, Resistance Screening, and Molecular Studies on Sterility Mosaic Disease of Pigeonpea Induced by Pigeonpea sterility mosaic viruses (PPSMV-I and PPSMV-II). Frontiers in Microbiology (TSI), 13. pp. 1-13. ISSN 1664-302X