Abstract
Random amplified polymorphic DNA (RAPD) analysis was used to determine genetic relationships amongP. mariana (black spruce),P. rubens (red spruce), andP. glauca (white spruce) and to assess the degree of polymorphism within populations from different provenances and among spruce hybrids. Eleven arbitrary decamer primers were used to amplify genomic DNAs extracted from embryogenic cultures and seedlings. Species-specific RAPD markers were identified.Picea mariana andP. rubens showed similar RAPD profiles confirming their close genetic relationship. Species-specific RAPD markers were identified and were useful in distinguishing white spruce from black and red spruces. RAPD differentiation between populations within each species was small. The level of polymorphism was much higher in spruce hybrid populations than in the pure species. Cytological analysis ofP. mariana ×P. rubens hybrids showed normal mitotic behaviour at prophase, metaphase, anaphase, and telophase. All the hybrids analyzed from different cross combinations were euploids.
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Nkongolo, K.K. RAPD variations among pure and hybrid populations ofPicea mariana, P. rubens, andP. glauca (Pinaceae), and cytogenetic stability ofPicea hybrids: Identification of species-specific RAPD markers. Pl Syst Evol 215, 229–239 (1999). https://doi.org/10.1007/BF00984657
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DOI: https://doi.org/10.1007/BF00984657