Fine mapping and DNA fiber FISH analysis locates the tobamovirus resistance gene L 3 of Capsicum chinense in a 400-kb region of R-like genes cluster embedded in highly repetitive sequences.
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| Title: | Fine mapping and DNA fiber FISH analysis locates the tobamovirus resistance gene L 3 of Capsicum chinense in a 400-kb region of R-like genes cluster embedded in highly repetitive sequences. |
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| Authors: | Tomita, R.1, Murai, J.2, Miura, Y.3, Ishihara, H.4, Liu, S.5,6, Kubotera, Y.1, Honda, A.1, Hatta, R.1, Kuroda, T.7, Hamada, H.8, Sakamoto, M.1, Munemura, I.1, Nunomura, O.6, Ishikawa, K.6, Genda, Y.6, Kawasaki, S.9, Suzuki, K.10, Meksem, K.5, Kobayashi, K.1 kappei@ibrc.or.jp |
| Source: | Theoretical & Applied Genetics. Nov2008, Vol. 117 Issue 7, p1107-1118. 12p. 1 Color Photograph, 1 Black and White Photograph, 2 Diagrams, 2 Charts. |
| Subjects: | Population genetics, Cultivars, Plant genetic engineering, Plant breeding, Biomarkers |
| Abstract: | The tobamovirus resistance gene L 3 of Capsicum chinense was mapped using an intra-specific F2 population (2,016 individuals) of Capsicum annuum cultivars, into one of which had been introduced the C. chinense L 3 gene, and an inter-specific F2 population (3,391 individuals) between C. chinense and Capsicum frutescence. Analysis of a BAC library with an AFLP marker closely linked to L 3-resistance revealed the presence of homologs of the tomato disease resistance gene I2. Partial or full-length coding sequences were cloned by degenerate PCR from 35 different pepper I2 homologs and 17 genetic markers were generated in the inter-specific combination. The L 3 gene was mapped between I2 homolog marker IH1-04 and BAC-end marker 189D23M, and located within a region encompassing two different BAC contigs consisting of four and one clones, respectively. DNA fiber FISH analysis revealed that these two contigs are separated from each other by about 30 kb. DNA fiber FISH results and Southern blotting of the BAC clones suggested that the L 3 locus-containing region is rich in highly repetitive sequences. Southern blot analysis indicated that the two BAC contigs contain more than ten copies of the I2 homologs. In contrast to the inter-specific F2 population, no recombinant progeny were identified to have a crossover point within two BAC contigs consisting of seven and two clones in the intra-specific F2 population. Moreover, distribution of the crossover points differed between the two populations, suggesting linkage disequilibrium in the region containing the L locus. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Items | – Name: Title Label: Title Group: Ti Data: Fine mapping and DNA fiber FISH analysis locates the tobamovirus resistance gene L <superscript>3</superscript> of Capsicum chinense in a 400-kb region of R-like genes cluster embedded in highly repetitive sequences. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Tomita%2C+R%2E%22">Tomita, R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Murai%2C+J%2E%22">Murai, J.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Miura%2C+Y%2E%22">Miura, Y.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Ishihara%2C+H%2E%22">Ishihara, H.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Liu%2C+S%2E%22">Liu, S.</searchLink><relatesTo>5,6</relatesTo><br /><searchLink fieldCode="AR" term="%22Kubotera%2C+Y%2E%22">Kubotera, Y.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Honda%2C+A%2E%22">Honda, A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hatta%2C+R%2E%22">Hatta, R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kuroda%2C+T%2E%22">Kuroda, T.</searchLink><relatesTo>7</relatesTo><br /><searchLink fieldCode="AR" term="%22Hamada%2C+H%2E%22">Hamada, H.</searchLink><relatesTo>8</relatesTo><br /><searchLink fieldCode="AR" term="%22Sakamoto%2C+M%2E%22">Sakamoto, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Munemura%2C+I%2E%22">Munemura, I.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Nunomura%2C+O%2E%22">Nunomura, O.</searchLink><relatesTo>6</relatesTo><br /><searchLink fieldCode="AR" term="%22Ishikawa%2C+K%2E%22">Ishikawa, K.</searchLink><relatesTo>6</relatesTo><br /><searchLink fieldCode="AR" term="%22Genda%2C+Y%2E%22">Genda, Y.</searchLink><relatesTo>6</relatesTo><br /><searchLink fieldCode="AR" term="%22Kawasaki%2C+S%2E%22">Kawasaki, S.</searchLink><relatesTo>9</relatesTo><br /><searchLink fieldCode="AR" term="%22Suzuki%2C+K%2E%22">Suzuki, K.</searchLink><relatesTo>10</relatesTo><br /><searchLink fieldCode="AR" term="%22Meksem%2C+K%2E%22">Meksem, K.</searchLink><relatesTo>5</relatesTo><br /><searchLink fieldCode="AR" term="%22Kobayashi%2C+K%2E%22">Kobayashi, K.</searchLink><relatesTo>1</relatesTo><i> kappei@ibrc.or.jp</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Theoretical+%26+Applied+Genetics%22">Theoretical & Applied Genetics</searchLink>. Nov2008, Vol. 117 Issue 7, p1107-1118. 12p. 1 Color Photograph, 1 Black and White Photograph, 2 Diagrams, 2 Charts. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Population+genetics%22">Population genetics</searchLink><br /><searchLink fieldCode="DE" term="%22Cultivars%22">Cultivars</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+genetic+engineering%22">Plant genetic engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+breeding%22">Plant breeding</searchLink><br /><searchLink fieldCode="DE" term="%22Biomarkers%22">Biomarkers</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The tobamovirus resistance gene L 3 of Capsicum chinense was mapped using an intra-specific F2 population (2,016 individuals) of Capsicum annuum cultivars, into one of which had been introduced the C. chinense L 3 gene, and an inter-specific F2 population (3,391 individuals) between C. chinense and Capsicum frutescence. Analysis of a BAC library with an AFLP marker closely linked to L 3-resistance revealed the presence of homologs of the tomato disease resistance gene I2. Partial or full-length coding sequences were cloned by degenerate PCR from 35 different pepper I2 homologs and 17 genetic markers were generated in the inter-specific combination. The L 3 gene was mapped between I2 homolog marker IH1-04 and BAC-end marker 189D23M, and located within a region encompassing two different BAC contigs consisting of four and one clones, respectively. DNA fiber FISH analysis revealed that these two contigs are separated from each other by about 30 kb. DNA fiber FISH results and Southern blotting of the BAC clones suggested that the L 3 locus-containing region is rich in highly repetitive sequences. Southern blot analysis indicated that the two BAC contigs contain more than ten copies of the I2 homologs. In contrast to the inter-specific F2 population, no recombinant progeny were identified to have a crossover point within two BAC contigs consisting of seven and two clones in the intra-specific F2 population. Moreover, distribution of the crossover points differed between the two populations, suggesting linkage disequilibrium in the region containing the L locus. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Theoretical & Applied Genetics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00122-008-0848-6 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 1107 Subjects: – SubjectFull: Population genetics Type: general – SubjectFull: Cultivars Type: general – SubjectFull: Plant genetic engineering Type: general – SubjectFull: Plant breeding Type: general – SubjectFull: Biomarkers Type: general Titles: – TitleFull: Fine mapping and DNA fiber FISH analysis locates the tobamovirus resistance gene L 3 of Capsicum chinense in a 400-kb region of R-like genes cluster embedded in highly repetitive sequences. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Tomita, R. – PersonEntity: Name: NameFull: Murai, J. – PersonEntity: Name: NameFull: Miura, Y. – PersonEntity: Name: NameFull: Ishihara, H. – PersonEntity: Name: NameFull: Liu, S. – PersonEntity: Name: NameFull: Kubotera, Y. – PersonEntity: Name: NameFull: Honda, A. – PersonEntity: Name: NameFull: Hatta, R. – PersonEntity: Name: NameFull: Kuroda, T. – PersonEntity: Name: NameFull: Hamada, H. – PersonEntity: Name: NameFull: Sakamoto, M. – PersonEntity: Name: NameFull: Munemura, I. – PersonEntity: Name: NameFull: Nunomura, O. – PersonEntity: Name: NameFull: Ishikawa, K. – PersonEntity: Name: NameFull: Genda, Y. – PersonEntity: Name: NameFull: Kawasaki, S. – PersonEntity: Name: NameFull: Suzuki, K. – PersonEntity: Name: NameFull: Meksem, K. – PersonEntity: Name: NameFull: Kobayashi, K. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2008 Type: published Y: 2008 Identifiers: – Type: issn-print Value: 00405752 Numbering: – Type: volume Value: 117 – Type: issue Value: 7 Titles: – TitleFull: Theoretical & Applied Genetics Type: main |
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