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Genomic Origins of Potato Polyploids: GBSSI Gene Sequencing Data
Author(s) -
Spooner David M.,
Rodríguez Flor,
Polgár Zsolt,
Ballard Harvey E.,
Jansky Shelley H.
Publication year - 2008
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci2007.09.0504tpg
Subject(s) - biology , genome , solanum tuberosum , genetics , gene , germplasm , phylogenetic tree , solanum , botany
Chromosome pairing relationships within cultivated potato ( Solanum tuberosum ) and its wild tuber‐bearing relatives ( Solanum sect. Petota ) have been interpreted by genome formulas, developed in the early 1900s, through techniques of classic meiotic analysis of interspecific hybrids. Here we reexamine potato genome hypotheses with the first phylogenetic analysis of all major genomes of sect. Petota using cloned DNA sequences of the single‐copy nuclear gene GBSSI (waxy). Our results provide the first molecular confirmation of allopolyploidy in wild potato. They both support prior hypotheses and identify novel genome origins never before proposed. The data will be useful to help design crossing strategies to incorporate wild species germplasm into cultivated potato.