Ultra - high - density QTL marker mapping for seedling photomorphogenesis mediating Arabidopsis establishment in Southern Patagonia

Arabidopsis thaliana shows a wide range of genetic and trait variation among wild accessions. Because of its unparalleled biological and genomic resources, Arabidopsis has a high potential for the identification of genes underlying ecologically important complex traits, thus providing new insights o...

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Detalles Bibliográficos
Otros Autores: Matsusaka, Daniel, Filiault, Daniele, Sánchez, Diego H., Botto, Javier Francisco
Formato: Artículo
Lenguaje:Inglés
Materias:
QTL
Acceso en línea:http://ri.agro.uba.ar/files/download/articulo/2021matsusaka.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
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245 1 |a Ultra - high - density QTL marker mapping for seedling photomorphogenesis mediating Arabidopsis establishment in Southern Patagonia 
520 |a Arabidopsis thaliana shows a wide range of genetic and trait variation among wild accessions. Because of its unparalleled biological and genomic resources, Arabidopsis has a high potential for the identification of genes underlying ecologically important complex traits, thus providing new insights on genome evolution. Previous research suggested that distinct light responses were crucial for Arabidopsis establishment in a peculiar ecological niche of southern Patagonia. The aim of this study was to explore the genetic basis of contrasting light-associated physiological traits that may have mediated the rapid adaptation to this new environment. From a biparental cross between the photomorphogenic contrasting accessions Patagonia (Pat) and Columbia (Col-0), we generated a novel recombinant inbred line (RIL) population, which was entirely next-generation sequenced to achieve ultra-high-density saturating molecular markers resulting in supreme mapping sensitivity. We validated the quality of the RIL population by quantitative trait loci (QTL) mapping for seedling de-etiolation, finding seven QTLs for hypocotyl length in the dark and continuous blue light (Bc), continuous red light (Rc), and continuous far-red light (FRc). The most relevant QTLs, Rc1 and Bc1, were mapped close together to chromosome V; the former for Rc and Rc/dark, and the latter for Bc, FRc, and dark treatments. The additive effects of both QTLs were confirmed by independent heterogeneous inbred families (HIFs), and we explored TZP and ABA1 as potential candidate genes for Rc1 and Bc1QTLs, respectively. We conclude that the Pat × Col-0 RIL population is a valuable novel genetic resource to explore other adaptive traits in Arabidopsis. 
650 |2 Agrovoc  |9 26 
653 |a ARABIDOPSIS 
653 |a PATAGONIA 
653 |a RILS 
653 |a HIFS 
653 |a QTL 
653 |a SEEDLING DE ETIOLATION 
700 1 |a Matsusaka, Daniel  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |9 74090 
700 1 |a Filiault, Daniele  |u Austrian Academy of Sciences. Gregor Mendel Institute. Vienna BioCenter. Vienna, Austria.  |9 74091 
700 1 |9 69714  |a Sánchez, Diego H.  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. 
700 1 |9 65609  |a Botto, Javier Francisco  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. 
773 |g Vol.12 (2021), e677728, 12 p., grafs.  |t Frontiers in Plant Science 
856 |f 2021matsusaka  |i en internet  |q application/pdf  |u http://ri.agro.uba.ar/files/download/articulo/2021matsusaka.pdf  |x ARTI202210 
856 |u http://www.frontiersin.org  |z LINK AL EDITOR 
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