A large maize (Zea mays L.) SNP genotyping array: development and germplasm genotyping, and genetic mapping to compare with the B73 reference genome.
SNP genotyping arrays have been useful for many applications that require a large number of molecular markers such as high-density genetic mapping, genome-wide association studies (GWAS), and genomic selection. We report the establishment of a large maize SNP array and its use for diversity analysis...
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2011
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oai:doaj.org-article:dda4f799b7294aaea3156229d686085c2021-11-18T07:32:45ZA large maize (Zea mays L.) SNP genotyping array: development and germplasm genotyping, and genetic mapping to compare with the B73 reference genome.1932-620310.1371/journal.pone.0028334https://doaj.org/article/dda4f799b7294aaea3156229d686085c2011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22174790/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203SNP genotyping arrays have been useful for many applications that require a large number of molecular markers such as high-density genetic mapping, genome-wide association studies (GWAS), and genomic selection. We report the establishment of a large maize SNP array and its use for diversity analysis and high density linkage mapping. The markers, taken from more than 800,000 SNPs, were selected to be preferentially located in genes and evenly distributed across the genome. The array was tested with a set of maize germplasm including North American and European inbred lines, parent/F1 combinations, and distantly related teosinte material. A total of 49,585 markers, including 33,417 within 17,520 different genes and 16,168 outside genes, were of good quality for genotyping, with an average failure rate of 4% and rates up to 8% in specific germplasm. To demonstrate this array's use in genetic mapping and for the independent validation of the B73 sequence assembly, two intermated maize recombinant inbred line populations - IBM (B73×Mo17) and LHRF (F2×F252) - were genotyped to establish two high density linkage maps with 20,913 and 14,524 markers respectively. 172 mapped markers were absent in the current B73 assembly and their placement can be used for future improvements of the B73 reference sequence. Colinearity of the genetic and physical maps was mostly conserved with some exceptions that suggest errors in the B73 assembly. Five major regions containing non-colinearities were identified on chromosomes 2, 3, 6, 7 and 9, and are supported by both independent genetic maps. Four additional non-colinear regions were found on the LHRF map only; they may be due to a lower density of IBM markers in those regions or to true structural rearrangements between lines. Given the array's high quality, it will be a valuable resource for maize genetics and many aspects of maize breeding.Martin W GanalGregor DurstewitzAndreas PolleyAurélie BérardEdward S BucklerAlain CharcossetJoseph D ClarkeEva-Maria GranerMark HansenJohann JoetsMarie-Christine Le PaslierMichael D McMullenPierre MontalentMark RoseChris-Carolin SchönQi SunHildrun WalterOlivier C MartinMatthieu FalquePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 12, p e28334 (2011) |
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Medicine R Science Q |
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Medicine R Science Q Martin W Ganal Gregor Durstewitz Andreas Polley Aurélie Bérard Edward S Buckler Alain Charcosset Joseph D Clarke Eva-Maria Graner Mark Hansen Johann Joets Marie-Christine Le Paslier Michael D McMullen Pierre Montalent Mark Rose Chris-Carolin Schön Qi Sun Hildrun Walter Olivier C Martin Matthieu Falque A large maize (Zea mays L.) SNP genotyping array: development and germplasm genotyping, and genetic mapping to compare with the B73 reference genome. |
| description |
SNP genotyping arrays have been useful for many applications that require a large number of molecular markers such as high-density genetic mapping, genome-wide association studies (GWAS), and genomic selection. We report the establishment of a large maize SNP array and its use for diversity analysis and high density linkage mapping. The markers, taken from more than 800,000 SNPs, were selected to be preferentially located in genes and evenly distributed across the genome. The array was tested with a set of maize germplasm including North American and European inbred lines, parent/F1 combinations, and distantly related teosinte material. A total of 49,585 markers, including 33,417 within 17,520 different genes and 16,168 outside genes, were of good quality for genotyping, with an average failure rate of 4% and rates up to 8% in specific germplasm. To demonstrate this array's use in genetic mapping and for the independent validation of the B73 sequence assembly, two intermated maize recombinant inbred line populations - IBM (B73×Mo17) and LHRF (F2×F252) - were genotyped to establish two high density linkage maps with 20,913 and 14,524 markers respectively. 172 mapped markers were absent in the current B73 assembly and their placement can be used for future improvements of the B73 reference sequence. Colinearity of the genetic and physical maps was mostly conserved with some exceptions that suggest errors in the B73 assembly. Five major regions containing non-colinearities were identified on chromosomes 2, 3, 6, 7 and 9, and are supported by both independent genetic maps. Four additional non-colinear regions were found on the LHRF map only; they may be due to a lower density of IBM markers in those regions or to true structural rearrangements between lines. Given the array's high quality, it will be a valuable resource for maize genetics and many aspects of maize breeding. |
| format |
article |
| author |
Martin W Ganal Gregor Durstewitz Andreas Polley Aurélie Bérard Edward S Buckler Alain Charcosset Joseph D Clarke Eva-Maria Graner Mark Hansen Johann Joets Marie-Christine Le Paslier Michael D McMullen Pierre Montalent Mark Rose Chris-Carolin Schön Qi Sun Hildrun Walter Olivier C Martin Matthieu Falque |
| author_facet |
Martin W Ganal Gregor Durstewitz Andreas Polley Aurélie Bérard Edward S Buckler Alain Charcosset Joseph D Clarke Eva-Maria Graner Mark Hansen Johann Joets Marie-Christine Le Paslier Michael D McMullen Pierre Montalent Mark Rose Chris-Carolin Schön Qi Sun Hildrun Walter Olivier C Martin Matthieu Falque |
| author_sort |
Martin W Ganal |
| title |
A large maize (Zea mays L.) SNP genotyping array: development and germplasm genotyping, and genetic mapping to compare with the B73 reference genome. |
| title_short |
A large maize (Zea mays L.) SNP genotyping array: development and germplasm genotyping, and genetic mapping to compare with the B73 reference genome. |
| title_full |
A large maize (Zea mays L.) SNP genotyping array: development and germplasm genotyping, and genetic mapping to compare with the B73 reference genome. |
| title_fullStr |
A large maize (Zea mays L.) SNP genotyping array: development and germplasm genotyping, and genetic mapping to compare with the B73 reference genome. |
| title_full_unstemmed |
A large maize (Zea mays L.) SNP genotyping array: development and germplasm genotyping, and genetic mapping to compare with the B73 reference genome. |
| title_sort |
large maize (zea mays l.) snp genotyping array: development and germplasm genotyping, and genetic mapping to compare with the b73 reference genome. |
| publisher |
Public Library of Science (PLoS) |
| publishDate |
2011 |
| url |
https://doaj.org/article/dda4f799b7294aaea3156229d686085c |
| work_keys_str_mv |
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