Evaluation of the discriminance capacity of RAPD, isoenzymes and morphologic markers in apple (Malus x domestica Borkh.) and the congruence among classifications

被引:18
作者
Royo J.B. [1 ]
Itoiz R. [1 ]
机构
[1] Dpto. Producción Agraria, Univ. Pública de Navarra, Campus Arrosadía s/n, 31006, Pamplona
关键词
Congruence; Genetic diversity; Malus; RAPD fingerprint;
D O I
10.1023/B:GRES.0000020857.29125.2b
中图分类号
学科分类号
摘要
Twenty-one apple accessions were characterised and classified taxonomically with randomly amplified polymorphic DNA (RAPD). The results were compared with morphological and isoenzymatic classifications of the same material by calculating the congruence between similarity matrices. The results confirmed the greater discrimination capacity of RAPD compared with isoenzymes, although the taxonomic clusters obtained with both types of markers were congruent. The genetic relationships calculated using RAPD and isoenzymes showed little congruence with the morphological relationships among accessions. Isoenzymatic markers are useful in germplasm banks to evaluate the diversity of newly introduced accessions. The use of RAPD markers are especially beneficial to discriminate between material that is genetically similar, to evaluate genetic variability within a collection and to choose the components of the core collection.
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页码:153 / 160
页数:7
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