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Allelism of endosperm balance number (EBN) in Solanum acaule Bitt. and other wild potato species



Allelism of endosperm balance number (EBN) in Solanum acaule Bitt. and other wild potato species



Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 89(6): 682-686



The inheritance of endosperm balance number (EBN), a genetic, dose-dependent crossability system functioning in tuber-bearing Solanum (potato) species, was investigated for certain wild potato species having an EBN equal to one half of their ploidy. The EBN of Solanum acaule, a disomic 4(2EBN) South American species, was investigated by producing F1 and F2 hybrids with artificial 4x(2EBN) S. commersonii. This allowed assessment of recombination among the two genomes of disomic S. acaule and that of S. commersonii. When crossability of the hybrids with 1EBN, 2EBN and 4EBN standards was tested, no variation for EBN was detected. The apparent lack of recombination and segregation for EBN in these hybrids indicates that the genomes of S. acaule and S. commersonii carry EBN in a genetically-similar way. Combined with previous reports, these data indicate that the inheritance of EBN is similar in widely-separated taxa from South America and Mexico.

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Accession: 002560583

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PMID: 24178011

DOI: 10.1007/BF00223705



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