Diversity and Pathogenesis of Mastreviruses in India

Malathi, V. G.; Kanakala, Surapathrudu

doi:10.1007/978-981-10-5672-7_15

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…Until 1994, presence of CpCDV was limited to the Indian subcontinent, but they were later found in the Middle East and Africa. The emergence of new dicot-infecting mastreviruses have been variously reported in recent years (2013–2017) throughout South and North Africa, South Asia, and the Arabian Peninsula (Figure 2) [13,14,23,24,25,33,34,35,36,37].…”

Section: Genetic Diversity Host Range and Evolutionmentioning

confidence: 99%

Chickpea chlorotic dwarf virus: An Emerging Monopartite Dicot Infecting Mastrevirus

Kanakala

Kuria

2018

Viruses

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Chickpea stunt disease (CSD), caused by Chickpea chlorotic dwarf virus (CpCDV) is a threat to chickpea production leading to yield losses of 75–95%. Chickpea chlorotic dwarf virus is a monopartite, single-stranded circular DNA virus in the genus Mastrevirus and family Geminiviridae. It is transmitted by Orosius albicinctus in a circulative (persistent) and nonpropagative manner. Symptoms of CSD include very small leaves, intense discoloration (yellowing (kabuli type) and reddening (desi type)), and bushy stunted appearance of the plant. Presently, CpCDVs occurs in Africa, Asia, Australia, and the Middle East, causing extensive losses on economically important crops in in the families Fabaceae, Asteraceae, Amaranthaceae, Brassicaceae, Cucurbitaceae, Caricaceae, Chenopodiaceae, Leguminosae, Malvaceae, Pedaliaceae, and Solanaceae. High frequency of recombinations has played a significant role in the wide host range, diversification, and rapid evolution of CpCDVs. This review highlights the extensive research on the CpCDV genome diversity, host range, plant–virus–insect interactions, and RNA interference-based resistance of CpCDV, providing new insights into the host adaptation and virus evolution.

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Section: Genetic Diversity Host Range and Evolutionmentioning

confidence: 99%

Chickpea chlorotic dwarf virus: An Emerging Monopartite Dicot Infecting Mastrevirus

Kanakala

Kuria

2018

Viruses

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“…Consistent occurrence of chickpea wilt and stunt disease causes serious yield loss to the chickpea crop every year in all major chickpea growing areas of India (Malathi and Kanakala 2017 ). But no detailed study has been performed to record the CpSD incidence in major chickpea production areas of India along with the identity of pathogen(s) involved.…”

Section: Introductionmentioning

confidence: 99%

Molecular characterization of chickpea chlorotic dwarf virus and peanut witches’ broom phytoplasma associated with chickpea stunt disease and identification of new host crops and leafhopper vectors in India

2021

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An investigation was carried out to identify and characterize the phytoplasma and viruses associated with the chickpea varieties showing severe stunting, leaf reddening, yellowing and phyllody symptoms during the summer season of 2018–2019 and 2019–2020 in eight states of India. The average disease incidence was recorded from 3 to 32% in different states. The presence of chickpea chlorotic dwarf virus (CpCDV) was confirmed in thirty-seven chickpea samples by amplification of CpCDV coat protein gene and sequence comparison analysis. No record of association of luteovirus, polerovirus and cucumovirus could be detected in any of the symptomatic chickpea samples by RT-PCR assay. Brassica nigra, B. juncea, Lens culinaris, two weeds (Heteropogan contartus, Aeschynomene virginica) and one leafhopper (Amarasca biguttula) were identified as new putative hosts for CpCDV. Association of peanut witches’ broom phytoplasma was confirmed in twenty-eight chickpea samples, Sesamum indicum, five weeds hosts and two leafhopper species (Exitianus indicus, Empoasca motti) using nested PCR assays with primer pairs P1/P7 and R16F2n/R16Rn. The results of phytoplasma association in plants and leafhopper samples were further validated by using five multilocus genes (secA, rp, imp, tuf and secY) specific primers. Sequence comparison, phylogenetic and virtual RFLP analysis of 16S rRNA gene and five multilocus genes confirmed the identity of association of 16SrII-C and 16SrII-D subgroups of phytoplasmas strain with chickpea samples collected from Andhra Pradesh (AP), Telangana, Karnataka, Madhya Pradesh, Uttar Pradesh and New Delhi. Mixed infection of phytoplasma (16SrII-D) and CpCDV was also detected in symptomatic chickpea samples from AP and Telangana. The reports of association of 16SrII-C subgroup phytoplasma in chickpea and 16SrII-D subgroup phytoplasma in C. sparsiflora and C. roseus are the new host records in world and from India, respectively.

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Evidence for the association of mastrevirus, cucumovirus and phytoplasma with chickpea stunt disease and their putative insect vectors in India

et al. 2020

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Diversity and Pathogenesis of Mastreviruses in India

Cited by 3 publications

References 16 publications

Chickpea chlorotic dwarf virus: An Emerging Monopartite Dicot Infecting Mastrevirus

Chickpea chlorotic dwarf virus: An Emerging Monopartite Dicot Infecting Mastrevirus

Molecular characterization of chickpea chlorotic dwarf virus and peanut witches’ broom phytoplasma associated with chickpea stunt disease and identification of new host crops and leafhopper vectors in India

Evidence for the association of mastrevirus, cucumovirus and phytoplasma with chickpea stunt disease and their putative insect vectors in India

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