Mostrar el registro sencillo del ítem

Hybrid identification in Nothofagus subgenus using high resolution melting with ITS and trnL approach

dc.contributor.authorSolano J.
dc.contributor.authorAnabalón L.
dc.contributor.authorEncina F.
dc.contributor.authorEsse C.
dc.contributor.authorPenneckamp D.
dc.date.accessioned2020-09-02T22:28:46Z
dc.date.available2020-09-02T22:28:46Z
dc.date.issued2019
dc.identifier10.7717/peerj.6779
dc.identifier.citation2019, 5, -
dc.identifier.issn21678359
dc.identifier.urihttps://hdl.handle.net/20.500.12728/6337
dc.descriptionThe genus Nothofagus is the main component of southern South American temperate forests. The 40 Nothofagus species, evergreen and deciduous, and some natural hybrids are spread among Central and Southern Chile, Argentina, New Zealand, Australia, New Guinea and New Caledonia. Nothofagus nervosa, Nothofagus obliqua and Nothofagus dombeyi are potentially very important timber producers due to their high wood quality and relative fast growth; however, indiscriminate logging has degraded vast areas the Chilean forest causing a serious state of deterioration of their genetic resource. The South of Chile has a large area covered by secondary forests of Nothofagus dombeyi. These forests have a high diversity of species, large amount of biomass and high silvicultural potential. This work shows a case of hybrid identification in Nothofagus subgenus in different secondary forests of Chile, using high resolution melting. Unknown samples of Nothofagus subgenus are genetically distinguishable with the ITS region of Nothofagus antarctica, Nothofagus nitida and N. obliqua species. It was not possible to distinguish between unknown samples of Andean versus coastal origin. Melting curves with ITS approach of unknown material are genetically similar, positioned between N. dombeyi and N. antarctica and distant from N. nitida. The unknown samples are genetically very close to Nothofagus dombeyi. This suggests the presence of hybrid individuality between species (N. dombeyi × N. antarctica) with the possibility of introgression towards the gene pool of N. antarctica, producing the deciduous foliage that is both present. The trnL locus has no distinction between the N. dombeyi and N. antarctica species, since a similar melting curve is present and equal Tm (80.00 ◦C). The trnL locus cannot be genetically distinguished from one unknown sample of Nothofagus to another, as highlighted in this study. Copyright 2019 Solano et al.
dc.language.isoen
dc.publisherPeerJ Inc.
dc.subjectHRM
dc.subjectITS region
dc.subjectNothofagus
dc.subjectNothofagus subgenus
dc.subjectTrnL locus
dc.subjectAntarctica
dc.subjectarticle
dc.subjectbiomass
dc.subjectChile
dc.subjectfoliage
dc.subjectforest
dc.subjectgene pool
dc.subjecthigh resolution melting analysis
dc.subjectindividuality
dc.subjectintrogression
dc.titleHybrid identification in Nothofagus subgenus using high resolution melting with ITS and trnL approach
dc.typeArticle


Ficheros en el ítem

Thumbnail
Nombre:
item_2-s2.0-85074229741.pdf
Tamaño:
2.945Kb
Formato:
PDF
Ver/

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem