A GBS-based genetic linkage map and quantitative trait loci (QTL) associated with resistance to Xanthomonas campestris pv. campestris race 1 identified in Brassica oleracea
The production of Brassica oleracea, an important vegetable crop, is severely affected by black rot disease caused by the bacterial pathogen Xanthomonas campestris pv. campestris. Resistance to race 1, the most virulent and widespread race in B. oleracea, is under quantitative control; therefore, id...
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| Format: | Article |
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Frontiers Media S.A.
2023-06-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2023.1205681/full |
| _version_ | 1797805744320413696 |
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| author | Lu Lu Su Ryun Choi Yong Pyo Lim Si-Yong Kang Si-Yong Kang So Young Yi So Young Yi |
| author_facet | Lu Lu Su Ryun Choi Yong Pyo Lim Si-Yong Kang Si-Yong Kang So Young Yi So Young Yi |
| author_sort | Lu Lu |
| collection | DOAJ |
| description | The production of Brassica oleracea, an important vegetable crop, is severely affected by black rot disease caused by the bacterial pathogen Xanthomonas campestris pv. campestris. Resistance to race 1, the most virulent and widespread race in B. oleracea, is under quantitative control; therefore, identifying the genes and genetic markers associated with resistance is crucial for developing resistant cultivars. Quantitative trait locus (QTL) analysis of resistance in the F2 population developed by crossing the resistant parent BR155 with the susceptible parent SC31 was performed. Sequence GBS approach was used to develop a genetic linkage map. The map contained 7,940 single nucleotide polymorphism markers consisting of nine linkage groups spanning 675.64 cM with an average marker distance of 0.66 cM. The F2:3 population (N = 126) was evaluated for resistance to black rot disease in summer (2020), fall (2020), and spring (2021). QTL analysis, using a genetic map and phenotyping data, identified seven QTLs with LOD values between 2.10 and 4.27. The major QTL, qCaBR1, was an area of overlap between the two QTLs identified in the 2nd and 3rd trials located at C06. Among the genes located in the major QTL interval, 96 genes had annotation results, and eight were found to respond to biotic stimuli. We compared the expression patterns of eight candidate genes in susceptible (SC31) and resistant (BR155) lines using qRT-PCR and observed their early and transient increases or suppression in response to Xanthomonas campestris pv. campestris inoculation. These results support the involvement of the eight candidate genes in black rot resistance. The findings of this study will contribute towards marker-assisted selection, additionally the functional analysis of candidate genes may elucidate the molecular mechanisms underlying black rot resistance in B. oleracea. |
| first_indexed | 2024-03-13T05:56:41Z |
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| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-03-13T05:56:41Z |
| publishDate | 2023-06-01 |
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| series | Frontiers in Plant Science |
| spelling | doaj.art-2fa71e1802a441d9b4f75defcff95d432023-06-13T04:25:55ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-06-011410.3389/fpls.2023.12056811205681A GBS-based genetic linkage map and quantitative trait loci (QTL) associated with resistance to Xanthomonas campestris pv. campestris race 1 identified in Brassica oleraceaLu Lu0Su Ryun Choi1Yong Pyo Lim2Si-Yong Kang3Si-Yong Kang4So Young Yi5So Young Yi6Institute of Agricultural Science, Chungnam National University, Daejeon, Republic of KoreaInstitute of Agricultural Science, Chungnam National University, Daejeon, Republic of KoreaMolecular Genetics and Genomics Laboratory, Department of Horticulture, Chungnam National University, Daejeon, Republic of KoreaDepartment of Horticulture, College of Industrial Sciences, Kongju National University, Yesan, Republic of KoreaResearch Center of Crop Breeding for Omics and Artificial Intelligence, Kongju National University, Yesan, Republic of KoreaInstitute of Agricultural Science, Chungnam National University, Daejeon, Republic of KoreaResearch Center of Crop Breeding for Omics and Artificial Intelligence, Kongju National University, Yesan, Republic of KoreaThe production of Brassica oleracea, an important vegetable crop, is severely affected by black rot disease caused by the bacterial pathogen Xanthomonas campestris pv. campestris. Resistance to race 1, the most virulent and widespread race in B. oleracea, is under quantitative control; therefore, identifying the genes and genetic markers associated with resistance is crucial for developing resistant cultivars. Quantitative trait locus (QTL) analysis of resistance in the F2 population developed by crossing the resistant parent BR155 with the susceptible parent SC31 was performed. Sequence GBS approach was used to develop a genetic linkage map. The map contained 7,940 single nucleotide polymorphism markers consisting of nine linkage groups spanning 675.64 cM with an average marker distance of 0.66 cM. The F2:3 population (N = 126) was evaluated for resistance to black rot disease in summer (2020), fall (2020), and spring (2021). QTL analysis, using a genetic map and phenotyping data, identified seven QTLs with LOD values between 2.10 and 4.27. The major QTL, qCaBR1, was an area of overlap between the two QTLs identified in the 2nd and 3rd trials located at C06. Among the genes located in the major QTL interval, 96 genes had annotation results, and eight were found to respond to biotic stimuli. We compared the expression patterns of eight candidate genes in susceptible (SC31) and resistant (BR155) lines using qRT-PCR and observed their early and transient increases or suppression in response to Xanthomonas campestris pv. campestris inoculation. These results support the involvement of the eight candidate genes in black rot resistance. The findings of this study will contribute towards marker-assisted selection, additionally the functional analysis of candidate genes may elucidate the molecular mechanisms underlying black rot resistance in B. oleracea.https://www.frontiersin.org/articles/10.3389/fpls.2023.1205681/fullBrassica oleraceablack rotquantitative trait locigenotyping by sequencinglinkage mapXanthomonas campestris pv. campestris |
| spellingShingle | Lu Lu Su Ryun Choi Yong Pyo Lim Si-Yong Kang Si-Yong Kang So Young Yi So Young Yi A GBS-based genetic linkage map and quantitative trait loci (QTL) associated with resistance to Xanthomonas campestris pv. campestris race 1 identified in Brassica oleracea Frontiers in Plant Science Brassica oleracea black rot quantitative trait loci genotyping by sequencing linkage map Xanthomonas campestris pv. campestris |
| title | A GBS-based genetic linkage map and quantitative trait loci (QTL) associated with resistance to Xanthomonas campestris pv. campestris race 1 identified in Brassica oleracea |
| title_full | A GBS-based genetic linkage map and quantitative trait loci (QTL) associated with resistance to Xanthomonas campestris pv. campestris race 1 identified in Brassica oleracea |
| title_fullStr | A GBS-based genetic linkage map and quantitative trait loci (QTL) associated with resistance to Xanthomonas campestris pv. campestris race 1 identified in Brassica oleracea |
| title_full_unstemmed | A GBS-based genetic linkage map and quantitative trait loci (QTL) associated with resistance to Xanthomonas campestris pv. campestris race 1 identified in Brassica oleracea |
| title_short | A GBS-based genetic linkage map and quantitative trait loci (QTL) associated with resistance to Xanthomonas campestris pv. campestris race 1 identified in Brassica oleracea |
| title_sort | gbs based genetic linkage map and quantitative trait loci qtl associated with resistance to xanthomonas campestris pv campestris race 1 identified in brassica oleracea |
| topic | Brassica oleracea black rot quantitative trait loci genotyping by sequencing linkage map Xanthomonas campestris pv. campestris |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2023.1205681/full |
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