Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/291994
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Admixture mapping of quantitative traits in Populus hybrid zones Power and limitations |
Autor: | Lindtke, D.; González-Martínez, Santiago C.; Macaya-Sanz, David; Lexer, C. | Palabras clave: | Model selection Dominance Overdominance Populus alba Populus tremula Leaf morphology |
Fecha de publicación: | 2013 | Editor: | Springer Nature | Citación: | Heredity 111: 474-485 (2013) | Resumen: | Uncovering the genetic architecture of species differences is of central importance for understanding the origin and maintenance of biological diversity. Admixture mapping can be used to identify the number and effect sizes of genes that contribute to the divergence of ecologically important traits, even in taxa that are not amenable to laboratory crosses because of their long generation time or other limitations. Here, we apply admixture mapping to naturally occurring hybrids between two ecologically divergent Populus species. We map quantitative trait loci for eight leaf morphological traits using 77 mapped microsatellite markers from all 19 chromosomes of Populus. We apply multivariate linear regression analysis allowing the modeling of additive and non-Additive gene action and identify several candidate genomic regions associated with leaf morphology using an information-theoretic approach. We perform simulation studies to assess the power and limitations of admixture mapping of quantitative traits in natural hybrid populations for a variety of genetic architectures and modes of gene action. Our results indicate that (1) admixture mapping has considerable power to identify the genetic architecture of species differences if sample sizes and marker densities are sufficiently high, (2) modeling of non-Additive gene action can help to elucidate the discrepancy between genotype and phenotype sometimes seen in interspecific hybrids, and (3) the genetic architecture of leaf morphological traits in the studied Populus species involves complementary and overdominant gene action, providing the basis for rapid adaptation of these ecologically important forest trees. ©2013 Macmillan Publishers Limited All rights reserved 0018-067X/13. | URI: | http://hdl.handle.net/10261/291994 | DOI: | 10.1038/hdy.2013.69 | ISSN: | 0018-067X | E-ISSN: | 1365-2540 |
Aparece en las colecciones: | (INIA) Artículos |
Mostrar el registro completo
CORE Recommender
PubMed Central
Citations
11
checked on 06-may-2024
SCOPUSTM
Citations
32
checked on 20-may-2024
WEB OF SCIENCETM
Citations
32
checked on 23-feb-2024
Page view(s)
22
checked on 21-may-2024
Google ScholarTM
Check
Altmetric
Altmetric
Artículos relacionados:
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.