Isozyme and plastid DNA assessment of pedigrees of nineteenth century potato cultivars

Isozyme and ctDNA RFLP patterns were determined for ten historically important potato cultivars (Solanum tuberosum ssp. tuberosuni) in order to relate and confirm their pedigrees. Isozyme polymorphism was detected at 11 of 13 loci examined, whereas only T-type cytoplasm, the predominant ctDNA of S....

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Bibliographic Details
Published in:Theoretical and applied genetics 1991-08, Vol.82 (2), p.195-200
Main Authors: Douches, D.S. (Michigan State Univ., East Lansing (USA). Dept. of Crop and Soil Sciences), Ludlam, K, Freyre, R
Format: Article
Language:English
Subjects:
ADN
Agronomy. Soil science and plant productions
Biological and medical sciences
CITOPLASMA
Cultivars: description, identification, tests, catalogs
CYTOPLASM
CYTOPLASME
CYTOPLASMIC INHERITANCE
DNA
ENZIMA DE RESTRICCION
ENZYME DE RESTRICTION
Fundamental and applied biological sciences. Psychology
GENETIC POLYMORPHISM
Genetics and breeding of economic plants
HEREDITE CYTOPLASMIQUE
HERENCIA CITOPLASMICA
ISOENZIMAS
ISOENZYME
ISOENZYMES
NUCLEOTIDE SEQUENCE
PLASTE
PLASTIDIOS
PLASTIDS
POLIMORFISMO GENETICO
POLYMORPHISME GENETIQUE
RESTRICTION ENZYMES
SECUENCIA NUCLEICA
SEQUENCE NUCLEIQUE
SOLANUM TUBEROSUM
Varietal selection. Specialized plant breeding, plant breeding aims
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Summary:Isozyme and ctDNA RFLP patterns were determined for ten historically important potato cultivars (Solanum tuberosum ssp. tuberosuni) in order to relate and confirm their pedigrees. Isozyme polymorphism was detected at 11 of 13 loci examined, whereas only T-type cytoplasm, the predominant ctDNA of S. tuberosum ssp. tuberosum, was observed. Isozyme analysis indicated that potato cultivars previously presumed to be derived from open-pollinated berries of Garnet Chili and Early Rose were in fact the result of hybridizations. In addition, putative pedigrees of Irish Cobbler, White Rose, and Bliss Triumph were not supported. Garnet Chili, the first derivative of Rough Purple Chili, carries allozmyes at Mdh-1 and Pgm-2, which supports the Chilean origin of Rough Purple Chili. The identical ctDNA pattern among the cultivars may indicate a common maternal lineage that traces through Garnet Chili to Rough Purple Chili. The allozyme frequencies estimated from these cultivars provide a base from which subsequent introductions of Solanum species into the ssp. tuberosum gene pool can be assessed.
ISSN:0040-5752
1432-2242
DOI:10.1007/BF00226213