QTL mapping and identification of candidate genes linked to red rot resistance in sugarcane

Banerjee, Nandita; Khan, Mohammad Suhail; Swapna, M.; Yadav, S. K.; Tiwari, Gopal Ji; Jena, Satya Narayan; Patel, Jinesh; Manimekalai, R.; Kumar, Sanjeev; Dattamajuder, S. K.; Kapur, Raman; Koebernick, Jenny; Singh, Rameshwar

doi:10.1007/s13205-023-03481-7

3 Biotech

2023

DOI: 10.1007/s13205-023-03481-7

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QTL mapping and identification of candidate genes linked to red rot resistance in sugarcane

Nandita Banerjee

Mohammad Suhail Khan²,

M. Swapna³

et al.

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“…Silva et al, 1995) and Affymetrix Axion 100 K SNPS(You et al, 2019a) are now widely used in sugarcane, Using SNP array genotyping and advanced high-throughput genotyping platforms to accelerate the detection of simplex markers(Balsalobre et al, 2017) and construct a density genetic map to locate QTLs. Several disease resistance and agronomic traits have been explored, including red rot resistance, SCYLV, leaf blight, mosaic disease resistance, and chlorophyll content(Banerjee et al, 2023;Lu et al, 2021;Wang et al, 2022;You et al, 2019b). In this study, QTLs were discovered, and candidate genes were screened for important agronomic traits of tillers and effective stalks in hybrid populations of Yuenong73-204 (low tillering) and CP72-1210 (high tillering).…”

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Characterization of Sugarcane QTLs for Tillering and stalks Quality through a Two-Way Pseudo-Testcross

Fang,

Chen,

Chachar

et al. 2023

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Sugarcane is grown worldwide from cultivars with complex genetic constitutions. Tillers and effective stalks are important agronomic traits of sugarcane that play important roles in yield. Using a two-way pseudo-testcross mapping strategy, we obtained a total of 172 F1 population of Yuenong73-204 (low tillering sugarcane variety) × CP72-1210 (ultra-high tillering germplasm), then, a total length of 1578.04 cM genetic map was constructed using 572 polymorphism SNPs genotyped by chip array. In addition, sprouts, tillers, and effective stalks of the F1 population were collected from four different environments. The total number of sprouts and tillers and the number of effective stalks were significantly positively correlated. The broad-sense heritability of tiller rate and effective stalk ranged 0.44, from 0.74. Quantitative trait loci (QTL) mapping showed 5 QTLs associated with tillers and 5 QTLs associated with effective stalks, one of which was identified in at least two environments. The phenotypic contribution rates of these (QTLs) ranged from 7.7–11.1% for tillers and 5.6–10.7% for effective stalks. A total number of 23 candidate genes, including 5 transcription factors and 5 proteins, were further identified in these QTLs intervals, among which the C2H2 transcription factor and E3 ubiquitin-protein ligase were the most significantly expressed in tillers and the effective stalk. These findings provide a reference for the genetic improvement of tillers and effective stalks of sugarcane.

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mentioning

confidence: 99%

Characterization of Sugarcane QTLs for Tillering and stalks Quality through a Two-Way Pseudo-Testcross

Fang,

Chen,

Chachar

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

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QTL mapping and identification of candidate genes linked to red rot resistance in sugarcane

Cited by 1 publication

References 105 publications

Characterization of Sugarcane QTLs for Tillering and stalks Quality through a Two-Way Pseudo-Testcross

Characterization of Sugarcane QTLs for Tillering and stalks Quality through a Two-Way Pseudo-Testcross

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