General and specific combining abilities in a maize ( Zea mays L.) test-cross hybrid panel: relative importance of population structure and genetic divergence between parents.
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| Title: | General and specific combining abilities in a maize ( Zea mays L.) test-cross hybrid panel: relative importance of population structure and genetic divergence between parents. |
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| Authors: | Larièpe, A., Moreau, L.1, Laborde, J.2, Bauland, C.1, Mezmouk, S.3, Décousset, L.3, Mary-Huard, T.1, Fiévet, J.1, Gallais, A.1, Dubreuil, P.3, Charcosset, A.1 charcos@moulon.inra.fr |
| Source: | Theoretical & Applied Genetics. Feb2017, Vol. 130 Issue 2, p403-417. 15p. |
| Subjects: | Corn, Genetics, Hybrid corn, Plant breeding, Alleles |
| Abstract: | Key message: General and specific combining abilities of maize hybrids between 288 inbred lines and three tester lines were highly related to population structure and genetic distance inferred from SNP data. Abstract: Many studies have attempted to provide reliable and quick methods to identify promising parental lines and combinations in hybrid breeding programs. Since the 1950s, maize germplasm has been organized into heterotic groups to facilitate the exploitation of heterosis. Molecular markers have proven efficient tools to address the organization of genetic diversity and the relationship between lines or populations. The aim of the present work was to investigate to what extent marker-based evaluations of population structure and genetic distance may account for general (GCA) and specific (SCA) combining ability components in a population composed of 800 inter and intra-heterotic group hybrids obtained by crossing 288 inbred lines and three testers. Our results illustrate a strong effect of groups identified by population structure analysis on both GCA and SCA components. Including genetic distance between parental lines of hybrids in the model leads to a significant decrease of SCA variance component and an increase in GCA variance component for all the traits. The latter suggests that this approach can be efficient to better estimate the potential combining ability of inbred lines when crossed with unrelated lines, and limits the consequences of tester choice. Significant residual GCA and SCA variance components of models taking into account structure and/or genetic distance highlight the variation available for breeding programs within structure groups. [ABSTRACT FROM AUTHOR] |
| 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. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 120926994 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: General and specific combining abilities in a maize ( Zea mays L.) test-cross hybrid panel: relative importance of population structure and genetic divergence between parents. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Larièpe%2C+A%2E%22">Larièpe, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Moreau%2C+L%2E%22">Moreau, L.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Laborde%2C+J%2E%22">Laborde, J.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Bauland%2C+C%2E%22">Bauland, C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Mezmouk%2C+S%2E%22">Mezmouk, S.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Décousset%2C+L%2E%22">Décousset, L.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Mary-Huard%2C+T%2E%22">Mary-Huard, T.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Fiévet%2C+J%2E%22">Fiévet, J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gallais%2C+A%2E%22">Gallais, A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Dubreuil%2C+P%2E%22">Dubreuil, P.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Charcosset%2C+A%2E%22">Charcosset, A.</searchLink><relatesTo>1</relatesTo><i> charcos@moulon.inra.fr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Theoretical+%26+Applied+Genetics%22">Theoretical & Applied Genetics</searchLink>. Feb2017, Vol. 130 Issue 2, p403-417. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Corn%22">Corn</searchLink><br /><searchLink fieldCode="DE" term="%22Genetics%22">Genetics</searchLink><br /><searchLink fieldCode="DE" term="%22Hybrid+corn%22">Hybrid corn</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+breeding%22">Plant breeding</searchLink><br /><searchLink fieldCode="DE" term="%22Alleles%22">Alleles</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Key message: General and specific combining abilities of maize hybrids between 288 inbred lines and three tester lines were highly related to population structure and genetic distance inferred from SNP data. Abstract: Many studies have attempted to provide reliable and quick methods to identify promising parental lines and combinations in hybrid breeding programs. Since the 1950s, maize germplasm has been organized into heterotic groups to facilitate the exploitation of heterosis. Molecular markers have proven efficient tools to address the organization of genetic diversity and the relationship between lines or populations. The aim of the present work was to investigate to what extent marker-based evaluations of population structure and genetic distance may account for general (GCA) and specific (SCA) combining ability components in a population composed of 800 inter and intra-heterotic group hybrids obtained by crossing 288 inbred lines and three testers. Our results illustrate a strong effect of groups identified by population structure analysis on both GCA and SCA components. Including genetic distance between parental lines of hybrids in the model leads to a significant decrease of SCA variance component and an increase in GCA variance component for all the traits. The latter suggests that this approach can be efficient to better estimate the potential combining ability of inbred lines when crossed with unrelated lines, and limits the consequences of tester choice. Significant residual GCA and SCA variance components of models taking into account structure and/or genetic distance highlight the variation available for breeding programs within structure groups. [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/s00122-016-2822-z Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 403 Subjects: – SubjectFull: Corn Type: general – SubjectFull: Genetics Type: general – SubjectFull: Hybrid corn Type: general – SubjectFull: Plant breeding Type: general – SubjectFull: Alleles Type: general Titles: – TitleFull: General and specific combining abilities in a maize ( Zea mays L.) test-cross hybrid panel: relative importance of population structure and genetic divergence between parents. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Larièpe, A. – PersonEntity: Name: NameFull: Moreau, L. – PersonEntity: Name: NameFull: Laborde, J. – PersonEntity: Name: NameFull: Bauland, C. – PersonEntity: Name: NameFull: Mezmouk, S. – PersonEntity: Name: NameFull: Décousset, L. – PersonEntity: Name: NameFull: Mary-Huard, T. – PersonEntity: Name: NameFull: Fiévet, J. – PersonEntity: Name: NameFull: Gallais, A. – PersonEntity: Name: NameFull: Dubreuil, P. – PersonEntity: Name: NameFull: Charcosset, A. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 00405752 Numbering: – Type: volume Value: 130 – Type: issue Value: 2 Titles: – TitleFull: Theoretical & Applied Genetics Type: main |
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