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수박에서 덩굴마름병 감수성 및 저항성 양친에 대한 차세대 염기서열 재분석으로 탐색된 SNP 기반 HRM 분자표지 개발

이은수1, 김진희1, 홍종필1, 김도선1, 김민경1, 허윤찬2, 백창기3, 이준대4, 이혜은1,*

Development of HRM Markers Based on SNPs Identified from Next Generation Resequencing of Susceptible and Resistant Parents to Gummy Stem Blight in Watermelon

Korean Journal of Breeding Science 2018;50(4):424-433.
Published online: December 1, 2018

농촌진흥청 국립원예특작과학원 채소과

농촌진흥청 국립원예특작과학원 기획조정과

농촌진흥청 국립원예특작과학원 원예특작환경과

전북대학교 농업생명과학대학 원예학과

Vegetable Research Division, NIHHS, RDA, Wanju, 55365, Republic of Korea

Planning and Coordination Division, NIHHS, RDA, Wanju, 55365, Republic of Korea

Horticultural and Herbal Crop Environment Division, NIHHS, RDA, Wanju, 55365, Republic of Korea

Department of Horticulture, Chonbuk National University, Jeonju, 54896, Republic of Korea

* (E-mail: helee72@korea.kr, Tel: +82-63-238-6674, Fax: +82-63-238-6605)
• Received: October 5, 2018   • Revised: October 9, 2018   • Accepted: October 30, 2018

Copyright: © 2018 by the Korean Society of Breeding Science

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Development of HRM Markers Based on SNPs Identified from Next Generation Resequencing of Susceptible and Resistant Parents to Gummy Stem Blight in Watermelon
Korean. J. Breed. Sci.. 2018;50(4):424-433.   Published online December 1, 2018
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Development of HRM Markers Based on SNPs Identified from Next Generation Resequencing of Susceptible and Resistant Parents to Gummy Stem Blight in Watermelon
Korean. J. Breed. Sci.. 2018;50(4):424-433.   Published online December 1, 2018
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Development of HRM Markers Based on SNPs Identified from Next Generation Resequencing of Susceptible and Resistant Parents to Gummy Stem Blight in Watermelon
Image Image Image
Fig. 1 Watermelon fruits of a susceptible line ‘920533’ (A) and a resistant line ‘PI 189225’ (B) to gummy stem blight.
Fig. 2 Comparison of resistance to Didymella bryoniae between resistant (‘PI 189225’) and susceptible (‘920533’) watermelon lines. % lesion area means the ratio of gummy stem blight lesion area to total leaf area. Bars on graphs indicate standard error. Three asterisks indicates that the susceptible cultivar represents significantly different values to the resistant cultivar. (Student’s t-test; p<0.001).
Fig. 3 Melting curves of two HRM markers, WGRS095 (A, C) and WGRS240 (B, D), developed in this study. A and B present the form of normalized melt curve, while C and D show us the image of difference curve. a, Plants of ‘920533’ genotype; b, Plants of ‘PI 189225’ genotype; h, Heterozygous plants.
Development of HRM Markers Based on SNPs Identified from Next Generation Resequencing of Susceptible and Resistant Parents to Gummy Stem Blight in Watermelon

Statistics of reference genome C. lanatus subsp.vulgaris cv. 97103.

Estimated genome size (Mbp) Genome assembly size (bp) Genome covered by assembly (%) Genome assembly size except ‘N’ base (bp) Number of scaffolds (Total length of scaffolds, Mbp) Number of contigs (Total length of contigs, Mbp)
425 355,247,419 83.6 321,373,230 1,793 (353.5) 43,342 (321.4)

Statistics of raw reads, trimmed reads, and mapped reads obtained from next generation resequencing data.

Plant material Use Raw reads Total reads Mapped reads



Total length (bp) Total length (bp) Trimmed/Raw Genome coverage The number of mapped reads (The ratio of mapped reads, %) Mapped region of reference genome (bp) Reference genome coverage (%)
‘920533 Female parent 17,762,375,526 13,598,385,369 ≒0.77 ≒38.279 80,972,784 (80.0) 320,192,188 90.13
‘PI 189225’ Male parent 116,791,415,024 13,071,171,856 ≒0.78 ≒36.795 87,354,113 (89.84) 305,232,561 85.92

Summary of single nucleotide polymorphisms (SNPs) and high-resolution melting (HRM) primer sets between watermelon lines ‘920533’ and ‘PI 189225’.

Raw SNP The number of homozygous SNP The number of HRM candidate The number of HRM recommended (single copy)

Total Intergenic region Genic region (HRM primer sets designed)
6,086,851 5,113,361 4,332,440 2,026,130 1,671,270 354,860

List of 61 SNP markers that were developed into HRM marker type. These markers were polymorphic between ‘920533’ and ‘PI 189225’ using HRM analysis.

Marker name z Chromosome SNP position (bp) y Forward primer (5’→3’) Reverse primer (5’→3’)
WGRS002 1 1,043,418 GGTGGTACCCAATTTGTCCCT AACAGGAAGCCGGCTAGAAA
WGRS006 1 3,819,913 GCGATCAAGAGACAAACGGG TGCGAAGGATGCTTGGTTCT
WGRS011 1 9,325,855 AGGTGCTTAGGAGGTGGAGA CCGCCATGAGAGGAGGTTAG
WGRS017 1 20,202,103 ACGGCAAGCAGTGAAGGTAT GGGGAGAGATGATCGAGCAC
WGRS018 1 22,049,812 TGGGAACTGAGAAGACTGCC GACTTCCACTTCCAACCCCT
WGRS028 1 30,705,477 TGGATATTCCCTCGCTCCAA TTGCTGCTCTTCAAATGGGC
WGRS030 1 33,601,876 GGACAAACCTGGCCCACTAA TCGAAAAGCAGCAGAGGCA

WGRS039 2 13,988,030 AACGGAGCTAATCGACGACC ACAAGGCCCAAGAGATTTAGGA
WGRS046 2 26,782,186 GCCCTGTCAGTGAACCATCA ACAGACCTGAGAATCACTAGCT
WGRS048 2 29,195,322 AGCGTGTGGTTTTGACTTGAG AGATGTAATGCGATGCAGTTGC

WGRS054 3 3,074,543 CGTCTCCAACTCCATCTCCG CTGAGGGGGTTGATGACGAG
WGRS061 3 11,069,946 GTGGGAGGGGAAAACGGATT CATTTTCTTCGGAGCTGGCG
WGRS066 3 20,298,449 TGCAGCCCATGAAAGTGCTA GTGTTTATTGTTCCGCCAGCT
WGRS072 3 25,926,099 GCTCTTCCATTGCTCCTGGA GCAGGGTTCTATGGTCGAGT
WGRS074 3 26,809,484 CGCTATCAGCCGACAAAAGC TCGAGGAAGCTTGCACCAAT

WGRS091 4 5,970,325 TGTGCTGATTGTGGACCTCC AGCTTGCTCATTCCTCTCGT
WGRS095 4 8,233,892 GGTGGCCTCACTATTACCGG GGTTTAGAGGTGGAAGGGGTG
WGRS098 4 10,824,802 TAAGACCCAACCGAACTGCC GCAGGCTGCTCTAACAAAGC
WGRS100 4 13,147,227 TGGTAGAAAATGGCAACGCG GATCAAGGACGGGAATGGGA
WGRS101 4 15,102,363 GGCAAAAGCAGACCCTGTTG CCAGTTCCACCAAGCAAACC
WGRS107 4 17,910,257 TGCCAAGAGAATGCAACACG ATGGAGGACATTGCTTGCCA

WGRS121 5 1,577,748 GGGGTTCCATTCCCTAAGGG GGCGAGATGGTCAAACTCCT
WGRS122 5 2,108,735 AGAACCCCCAACCAAAGCTT TCCCCTGCCTTTGCTTGATT
WGRS124 5 4,255,857 CCAGGCATCCAATCGAGGAA CGTCCATAAAGTTGTGGCCC
WGRS126 5 6,580,137 AGTCCGTTGTCCAGTTTCGA AACAGTAGCCCAAGAGCTGG

WGRS148 6 36,471 GTGCTGCTCCTGGTCTCTAA ACTCAATGGGTGCTTGTGGT
WGRS151 6 1,670,897 GCCATTTGATTCCTCACCGC GAGCTGCCCGTAATGCAATG
WGRS152 6 2,870,018 GCTGCGATCGTGTTCACATC CAGAGGCCAAGACCCAGAAT
WGRS170 6 18,074,367 GCTGTGCTTCTTGTGGCAAA AGAGAACATCAACACGGCGT
WGRS171 6 19,159,722 AGAGCTTTTCGTCATGGCCA TCCAGGTTTGGTTTCCGACA
WGRS172 6 20,013,243 TAGGTCAGCCCTCCCTCAAA CGTTCGAGTAATCCTCCGGG
WGRS174 6 21,093,377 TGGAGTGTTTGACTGTGGGG TCTCCATCTCCAGCCATCCT
WGRS177 6 22,055,693 AAGTGGCAATACCTGACCCC ACTACTCTGCAGCTCATGGC
WGRS186 6 26,890,432 CCTGCTTGTGGACCTGGAAT GCAACCATGCGCACATAACT

WGRS190 7 3,830,477 ATCCGCAGATTCACAGGGAG GGCGCTTAAATCTGGTTCCC
WGRS194 7 6,714,580 CGTTGTTTGCAAGCTCCCAA GCCTCCGCTTCCGATTCTTA
WGRS200 7 16,377,893 AGAATCTTGCCACCTTAGGG TCGGTGGTGACTGAGAAACA
WGRS203 7 21,480,403 AATTGGAGGGTCAAGGGGTG TGCTCGTTTCATCAAAAGCCA
WGRS208 7 26,134,906 TGGGCTACATTGTTCTGCCT GCTTCAAGTTTCCTTGCCTGT
WGRS209 7 27,405,979 TGGTGGTGGAGGCAATCAAA GGGGGTTATGCCTGAAACAA
WGRS212 7 30,620,572 TGCTTGGGTTGTATCACTGACA TGGTGTGGCAGGTAATTGGA
WGRS213 7 31,054,142 AATTCTTTGCGCACTCGTGG ATCCACTCTGAGCAATTGGC

WGRS220 8 7,024,617 AACAGTCAACACCCAGCCTT TTGAGGTGGTCTTTCCGAGC
WGRS221 8 7,889,760 GTGACAACCAAGCAGCACTG TCCTGCCCAACTTGTTCCTC
WGRS225 8 10,733,107 CTTCTGCCATTAAACGCCCA GGGTTCAATCATTGTGGTCACC
WGRS226 8 11,279,464 TGCTGGCCCCACTCAATAAA AGGACCGGGTCTCAATCTCA
WGRS227 8 11,656,539 AGTTCTAACGACACGAGGGC TTGTACCAGACTGCGAGCAA
WGRS229 8 15,003,269 CCTTGTGCAACCAAAGCTGT GACAGCGGTTGCATCAGTTC
WGRS233 8 17,637,101 GTAGACACTCTTAGCCGGGC TCCTGCATTGTGTGGTTCCA
WGRS235 8 18,473,596 ACTGTGTGCACTCACCTGTT CGGACATCTGCTGAGGAGTT
WGRS240 8 20,663,001 ACGGCTGGTCTCATGTTCAA TAGGGTTTGGTGCTGGTGAC

WGRS254 9 4,555,267 TGGCTAACCATGGGTTGCAT AGTTTGTTCCAGCGCCATTG
WGRS263 9 16,573,290 GAGTGCTGATGGAAGCTGGA TGCTCCATATGGAAGCAAGTCA
WGRS271 9 29,654,845 TGCACATTGTGTCACTCTACGA CATTGCCTAGAATTTGCCGGG
WGRS272 9 30,799,073 CTAGATTCCTGCGGATGCCT ACCCATACCTTCTCGCGAAA

WGRS281 10 6,101,884 GCCGGTAGTTTCTGACCCAA AGGTTCAAGAAGTGGCGGAG
WGRS287 10 14,082,501 ACAATGCCTCCACCTTTCCA GTAGCAGCAACAGTGGCAAA
WGRS297 10 27,692,702 TGGCAGTGTTGTACTTGGGT AGGGCTTGGAGACTTTTGCA

WGRS307 11 6,959,074 GAGGGTGAGTTTCTGGTGGG CACGCACACTTCACGCTTAA
WGRS316 11 14,891,680 GTGCCTCTGCTTCTCAGGTT TGGCAGTTTTAGGCTTTTCAGT
WGRS326 11 24,272,773 CAGGTTCCTGAAGCAGCTGA GCTGAATCTACCAGGCAACA

zSNP (HRM) markers developed in this study and WGRS is the abbreviation for watermelon gummy stem blight resistance SNP.

yPosition of SNP on reference genome.

Table 1 Statistics of reference genome C. lanatus subsp.vulgaris cv. 97103.
Table 2 Statistics of raw reads, trimmed reads, and mapped reads obtained from next generation resequencing data.
Table 3 Summary of single nucleotide polymorphisms (SNPs) and high-resolution melting (HRM) primer sets between watermelon lines ‘920533’ and ‘PI 189225’.
Table 4 List of 61 SNP markers that were developed into HRM marker type. These markers were polymorphic between ‘920533’ and ‘PI 189225’ using HRM analysis.

SNP (HRM) markers developed in this study and WGRS is the abbreviation for watermelon gummy stem blight resistance SNP.

Position of SNP on reference genome.