Genetic characterisation of oak seedlings, epicormic, crown and micropropagated shoots from mature trees by RAPD and microsatellite PCR
Identifieur interne : 001133 ( Main/Exploration ); précédent : 001132; suivant : 001134Genetic characterisation of oak seedlings, epicormic, crown and micropropagated shoots from mature trees by RAPD and microsatellite PCR
Auteurs : C. Barrett [Irlande (pays)] ; F. Lefort [Irlande (pays)] ; G. C. Douglas [Irlande (pays)]Source :
- Scientia Horticulturae [ 0304-4238 ] ; 1997.
English descriptors
- KwdEn :
Abstract
Abstract: DNA was isolated from seedlings of Quercus robur, collected from a single provenance, and from epicormic, crown shoots and in vitro shoots from a single tree of Q. petraea using a CTAB method of extraction. DNA was obtained in sufficient quantity and purity, from 13 out of 30 seedlings, and from all isolations from epicormic and in vitro shoots (2.5–10.0 μg/g fresh/ weight). Smearing was minimised at a primer concentration of 0.12 μM with Taq polymerase at 0.5 unit/reaction. Nine primers produced 142 bands, 28 of which were polymorphic. A similarity index showed that 11 seedlings were closely related with high coefficients (0.85–0.90), but each could be identified from another using only 9 primers (OPA-02 and -05, OPG-04 and -05, OPE-01, -02, -03, -08, -09). DNA was isolated from crown, epicormic and in vitro leaves originating from a single 150-yr old tree of Q. petraea and analysed by randomly amplified polymorphic DNA (RAPD) and microsatellites. With each primer, a characteristic RAPD pattern was obtained, and it was common to all six epicormic shoots derived from different parts of a single branch of this tree; also to the shoots from the crown of the same tree with OPE1 OPA-05, OPA-08, OPA-01, OPA-02, OPA-04, OPA-05, OPG-02, OPG-10, OPE-12. Similarly, the RAPD pattern obtained from shoot cultures in vitro, derived from individual nodes of epicormic shoots produced by six different branch segments, were uniform for each of 15 primers. This work was repeated using microsatellite PCR. Three microsatellite loci AG16, AG 1/2 and AG 1/5 were amplified by PCR. It showed a uniformity of these microsatellite loci in shoots from the crown of the tree, and from epicormic shoots cultures derived from six different sections of branch.
Url:
DOI: 10.1016/S0304-4238(97)00065-4
Affiliations:
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DNA was obtained in sufficient quantity and purity, from 13 out of 30 seedlings, and from all isolations from epicormic and in vitro shoots (2.5–10.0 μg/g fresh/ weight). Smearing was minimised at a primer concentration of 0.12 μM with Taq polymerase at 0.5 unit/reaction. Nine primers produced 142 bands, 28 of which were polymorphic. A similarity index showed that 11 seedlings were closely related with high coefficients (0.85–0.90), but each could be identified from another using only 9 primers (OPA-02 and -05, OPG-04 and -05, OPE-01, -02, -03, -08, -09). DNA was isolated from crown, epicormic and in vitro leaves originating from a single 150-yr old tree of Q. petraea and analysed by randomly amplified polymorphic DNA (RAPD) and microsatellites. With each primer, a characteristic RAPD pattern was obtained, and it was common to all six epicormic shoots derived from different parts of a single branch of this tree; also to the shoots from the crown of the same tree with OPE1 OPA-05, OPA-08, OPA-01, OPA-02, OPA-04, OPA-05, OPG-02, OPG-10, OPE-12. Similarly, the RAPD pattern obtained from shoot cultures in vitro, derived from individual nodes of epicormic shoots produced by six different branch segments, were uniform for each of 15 primers. This work was repeated using microsatellite PCR. Three microsatellite loci AG16, AG 1/2 and AG 1/5 were amplified by PCR. It showed a uniformity of these microsatellite loci in shoots from the crown of the tree, and from epicormic shoots cultures derived from six different sections of branch.</div></front></TEI><affiliations><list><country><li>Irlande (pays)</li></country></list><tree><country name="Irlande (pays)"><noRegion><name sortKey="Barrett, C" sort="Barrett, C" uniqKey="Barrett C" first="C." last="Barrett">C. Barrett</name></noRegion><name sortKey="Douglas, G C" sort="Douglas, G C" uniqKey="Douglas G" first="G. C." last="Douglas">G. C. Douglas</name><name sortKey="Lefort, F" sort="Lefort, F" uniqKey="Lefort F" first="F." last="Lefort">F. Lefort</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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