Impact of the viruses associated with mosaic and yellow leaf disease on varietal degeneration in sugarcane

Bagyalakshmi, K.; Viswanathan, R.; Ravichandran, V.

doi:10.1007/s12600-019-00747-w

Cited by 23 publications

(10 citation statements)

References 27 publications

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“…The ORF encodes a polyprotein of approximately 350 kDa, which is cleaved into the following 11 genic products, from the N-to C-termini: P1, Protein 1; HC-Pro, Helper component proteinase; P3, Protein 3; PIPO, Pretty interesting Potyviridae ORF; 6K1, Protein 6K1; CI, Cylindrical inclusion protein; 6K2, Protein 6K2; VPg, Viral protein genome-linked; NIa-Pro, Nuclear inclusion a protein; NIb-Pro, Nuclear inclusion b protein; and CP, Coat protein (Urcuqui-Inchima et al, 2001;Chung et al, 2008). The disease caused by SCMV affects photosynthesis directly due to chlorophyl destruction, leading to reductions in the total content of sugar and its crystallization rate, which may reduce the yield of sugarcane by up to 80% (Irvine, 1971;Koike and Gillaspie, 1989;Singh et al, 1997;Bagyalakshmi et al, 2019;Pan et al, 2021).…”

Section: Virus-aphid Complexmentioning

confidence: 99%

Sugarcane multitrophic interactions: Integrating belowground and aboveground organisms

et al. 2023

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Sugarcane is a crop of major importance used mainly for sugar and biofuel production, and many additional applications of its byproducts are being developed. Sugarcane cultivation is plagued by many insect pests and pathogens that reduce sugarcane yields overall. Recently emerging studies have shown complex multitrophic interactions in cultivated areas, such as the induction of sugarcane defense-related proteins by insect herbivory that function against fungal pathogens that commonly appear after mechanical damage. Fungi and viruses infecting sugarcane also modulate insect behavior, for example, by causing changes in volatile compounds responsible for insect attraction or repelling natural vector enemies via a mechanism that increases pathogen dissemination from infected plants to healthy ones. Interestingly, the fungus Fusarium verticillioides is capable of being vertically transmitted to insect offspring, ensuring its persistence in the field. Understanding multitrophic complexes is important to develop better strategies for controlling pathosystems affecting sugarcane and other important crops and highlights the importance of not only studying binary interactions but also adding as many variables as possible to effectively translate laboratory research to real-life conditions.

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Section: Virus-aphid Complexmentioning

confidence: 99%

Sugarcane multitrophic interactions: Integrating belowground and aboveground organisms

et al. 2023

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“…However, the RA of sugarcane is not determined just by genetics but by a combination of factors including environment (soil, temperature, humidity, and water supply), cultivation technology ( Xu et al., 2021 ), and the interactions between them. Several studies have been reported related to the RA in context of the environment, biotic and abiotic stress, and management practices ( Singh et al., 2006 ; Shukla et al., 2008 ; Gomathi et al., 2013 ; Ramburan et al., 2013 ; Bagyalakshmi et al., 2019 ; Gao et al., 2019 ).…”

Section: Introductionmentioning

confidence: 99%

A first look at the ability to use genomic prediction for improving the ratooning ability of sugarcane

et al. 2023

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The sugarcane ratooning ability (RA) is the most important target trait for breeders seeking to enhance the profitability of sugarcane production by reducing the planting cost. Understanding the genetics governing the RA could help breeders by identifying molecular markers that could be used for genomics-assisted breeding (GAB). A replicated field trial was conducted for three crop cycles (plant cane, first ratoon, and second ratoon) using 432 sugarcane clones and used for conducting genome-wide association and genomic prediction of five sugar and yield component traits of the RA. The RA traits for economic index (EI), stalk population (SP), stalk weight (SW), tonns of cane per hectare (TCH), and tonns of sucrose per hectare (TSH) were estimated from the yield and sugar data. A total of six putative quantitative trait loci and eight nonredundant single-nucleotide polymorphism (SNP) markers were associated with all five tested RA traits and appear to be unique. Seven putative candidate genes were colocated with significant SNPs associated with the five RA traits. The genomic prediction accuracies for those tested traits were moderate and ranged from 0.21 to 0.36. However, the models fitting fixed effects for the most significant associated markers for each respective trait did not give any advantages over the standard models without fixed effects. As a result of this study, more robust markers could be used in the future for clone selection in sugarcane, potentially helping resolve the genetic control of the RA in sugarcane.

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“…The disease is mainly caused by single or co-infection of Sugarcane mosaic virus (SCMV), Sorghum mosaic virus (SrMV), and Sugarcane streak mosaic virus (SCSMV) ( Lu et al., 2021 ). SMD exhibiting typical “mosaic” symptoms ( Grisham, 2011 ) can seriously reduce the photosynthetic capacity ( Bagyalakshmi et al., 2019 ), yield, and quality of sugarcane ( Singh et al., 2003 ; Viswanathan and Balamuralikrishnan, 2005 ). Pandemic SMD has occurred many times in history and caused huge economic losses and even bankruptcies to many sugar companies ( Koike and Gillaspie, 1989 ; Grisham, 2011 ).…”

Section: Introductionmentioning

confidence: 99%

Identification of QTLs and critical genes related to sugarcane mosaic disease resistance

Wang²,

Pan³

et al. 2023

Front. Plant Sci.

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Mosaic viral diseases affect sugarcane productivity worldwide. Mining disease resistance-associated molecular markers or genes is a key component of disease resistance breeding programs. In the present study, 285 F1 progeny were produced from a cross between Yuetang 93-159, a moderately resistant variety, and ROC22, a highly susceptible variety. The mosaic disease symptoms of these progenies, with ROC22 as the control, were surveyed by natural infection under 11 different environmental conditions in the field and by artificial infections with a mixed sugarcane mosaic virus (SCMV) and sorghum mosaic virus (SrMV) inoculum. Analysis of consolidated survey data enabled the identification of 29 immune, 55 highly resistant, 70 moderately resistant, 62 susceptible, and 40 highly susceptible progenies. The disease response data and a high-quality SNP genetic map were used in quantitative trait locus (QTL) mapping. The results showed that the correlation coefficients (0.26~0.91) between mosaic disease resistance and test environments were significant (p< 0.001), and that mosaic disease resistance was a highly heritable quantitative trait (H2 = 0.85). Seven mosaic resistance QTLs were located to the SNP genetic map, each QTL accounted for 3.57% ~ 17.10% of the phenotypic variation explained (PVE). Furthermore, 110 pathogen response genes and 69 transcription factors were identified in the QTLs interval. The expression levels of nine genes (Soffic.07G0015370-1P, Soffic.09G0015410-2T, Soffic.09G0016460-1T, Soffic.09G0016460-1P, Soffic.09G0017080-3C, Soffic.09G0018730-3P, Soffic.09G0018730-3C, Soffic.09G0019920-3C and Soffic.03G0019710-2C) were significantly different between resistant and susceptible progenies, indicating their key roles in sugarcane resistance to SCMV and SrMV infection. The seven QTLs and nine genes can provide a certain scientific reference to help sugarcane breeders develop varieties resistant to mosaic diseases.

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Impact of the viruses associated with mosaic and yellow leaf disease on varietal degeneration in sugarcane

Cited by 23 publications

References 27 publications

Sugarcane multitrophic interactions: Integrating belowground and aboveground organisms

Sugarcane multitrophic interactions: Integrating belowground and aboveground organisms

A first look at the ability to use genomic prediction for improving the ratooning ability of sugarcane

Identification of QTLs and critical genes related to sugarcane mosaic disease resistance

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