caa a22 4500 475795571 CHVBK 20180406123723.0 cr unu---uuuuu 170329e20000101xx s 000 0 eng 10.1007/s001220050010 doi (NATIONALLICENCE)springer-10.1007/s001220050010 Identification of larch species ( Larix decidua, Larix kaempferi and Larix X eurolepis ) and estimation of hybrid fraction in seed lots by RAPD fingerprints [Elektronische Daten] [D. Scheepers, M. -C. Eloy, M. Briquet] Abstract : Species-specific RAPD markers were used to identify the different larch species (Larix decidua and Larix kaempferi) and their interspecific hybrid (Larix X eurolepis). Although morphological differences between pure species and the hybrids exist, differentiation is not always possible, especially at an early stage (seed or plantlet). Eleven RAPD markers differentiated the two larch species, and 4 species-specific markers were sufficient to estimate the F1 hybrid fraction in a seed lot. The species-specific markers were tested on individual trees of European and Japanese larches of diverse geographic origins and on several seed lots of different origins (F1, F2 hybrids and pure species). The 4 specific markers found for the European larch and the Japanese larch were monomorphic and present in all provenances and in all F1 hybrid trees tested. Polymorphic SCAR fragments were obtained for 3 of the 11 fragments originally selected for the RAPD screening phase. For 2 of them, the sequence had some homology with the mitochondrial genome of other organisms and is thus mitochondrial. The two mitochondrial fragments and the OPF-131000 fragment exhibited one polymorphic band, thereby maintaining its species-specific identity: OPF-131000 is specific to the European larch. The 4 RAPD primers selected in this study offer a reliable, quick and cheap tool for the identification of different larch species (Larix decidua and Larix kaempferi) and their interspecific hybrid (Larix X eurolepis). Springer-Verlag Berlin Heidelberg, 2000 Key words Species-specific markers nationallicence PCR nationallicence Hybrid nationallicence Conifers nationallicence Scheepers D. Université catholique de Louvain, Unité de Biochimie Physiologique, Place Croix du Sud, 2/20, B-1348 Louvain-la-Neuve, Belgium e-mail: briquet@fysa.ucl.ac.be Fax: 32-10-473872, BE aut Eloy M. -C Université catholique de Louvain, Unité de Biochimie Physiologique, Place Croix du Sud, 2/20, B-1348 Louvain-la-Neuve, Belgium e-mail: briquet@fysa.ucl.ac.be Fax: 32-10-473872, BE aut Briquet M. Université catholique de Louvain, Unité de Biochimie Physiologique, Place Croix du Sud, 2/20, B-1348 Louvain-la-Neuve, Belgium e-mail: briquet@fysa.ucl.ac.be Fax: 32-10-473872, BE aut https://doi.org/10.1007/s001220050010 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s001220050010 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Scheepers D. Université catholique de Louvain, Unité de Biochimie Physiologique, Place Croix du Sud, 2/20, B-1348 Louvain-la-Neuve, Belgium e-mail: briquet@fysa.ucl.ac.be Fax: 32-10-473872, BE aut NATIONALLICENCE 700 1- Eloy M. -C Université catholique de Louvain, Unité de Biochimie Physiologique, Place Croix du Sud, 2/20, B-1348 Louvain-la-Neuve, Belgium e-mail: briquet@fysa.ucl.ac.be Fax: 32-10-473872, BE aut NATIONALLICENCE 700 1- Briquet M. Université catholique de Louvain, Unité de Biochimie Physiologique, Place Croix du Sud, 2/20, B-1348 Louvain-la-Neuve, Belgium e-mail: briquet@fysa.ucl.ac.be Fax: 32-10-473872, BE aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer