Electrophoretic Evidence for Tetrasomic Inheritance in the Dioecious Tree Maclura pomifera (Raf.) Schneid

Title:
Electrophoretic Evidence for Tetrasomic Inheritance in the Dioecious Tree Maclura pomifera (Raf.) Schneid
Authors:
Laushman, Roger H.; Schnabel, Andrew; Hamrick, J. L.
Abstract:
Although polyploidy is recognized as an important feature of chromosomal evolution, natural autopolyploids rarely occur compared to allopolyploids. Enzymes coded by four electrophoretic loci ( Lap, Pgm-1, Pgi-2, and Tpi-2 ) in adults and full-sib progenty indicate tetrasomic inheritance in the dioecious tree Macura pomifera , strongly suggesting that this species is an autopolyploid. This study is the first to document tetrasomic inheritance in a dioecious tree. Five of 19 segregation arrays deviated significantly from expected tetrasomic ratios, whereas 11 of 19 deviated significantly from digenic disomic expectations. We observed 22 double-reduction genotypes, which provides a likely source of devistion from expected tetrasomic frequencies. We suggets that unusual patterns of sexual expression in this species are related to autopolypliody through production of unbalanced sex chromosome ratios.
Citation:
Laushman, R.H., A. Schnabel, and J.L. Hamrick. 1996. "Electrophoretic Evidence for Tetrasomic Inheritance in the Dioecious Tree Maclura pomifera (Raf.) Schneid." Journal of Heredity 87(6): 469-473.
Publisher:
Oxford University Press
DATE ISSUED:
1996-11-01
Department:
Biology
Type:
Article
PUBLISHED VERSION:
10.1093/oxfordjournals.jhered.a023040
PERMANENT LINK:
http://hdl.handle.net/11282/596699

Full metadata record

DC FieldValue Language
dc.contributor.authorLaushman, Roger H.en
dc.contributor.authorSchnabel, Andrewen
dc.contributor.authorHamrick, J. L.en
dc.date.accessioned2016-02-18T16:42:37Zen
dc.date.available2016-02-18T16:42:37Zen
dc.date.issued1996-11-01en
dc.identifier.citationLaushman, R.H., A. Schnabel, and J.L. Hamrick. 1996. "Electrophoretic Evidence for Tetrasomic Inheritance in the Dioecious Tree Maclura pomifera (Raf.) Schneid." Journal of Heredity 87(6): 469-473.en
dc.identifier.issn0022-1503en
dc.identifier.urihttp://hdl.handle.net/11282/596699en
dc.description.abstractAlthough polyploidy is recognized as an important feature of chromosomal evolution, natural autopolyploids rarely occur compared to allopolyploids. Enzymes coded by four electrophoretic loci ( Lap, Pgm-1, Pgi-2, and Tpi-2 ) in adults and full-sib progenty indicate tetrasomic inheritance in the dioecious tree Macura pomifera , strongly suggesting that this species is an autopolyploid. This study is the first to document tetrasomic inheritance in a dioecious tree. Five of 19 segregation arrays deviated significantly from expected tetrasomic ratios, whereas 11 of 19 deviated significantly from digenic disomic expectations. We observed 22 double-reduction genotypes, which provides a likely source of devistion from expected tetrasomic frequencies. We suggets that unusual patterns of sexual expression in this species are related to autopolypliody through production of unbalanced sex chromosome ratios.en
dc.language.isoen_USen
dc.publisherOxford University Pressen
dc.identifier.doi10.1093/oxfordjournals.jhered.a023040en
dc.subject.departmentBiologyen_US
dc.titleElectrophoretic Evidence for Tetrasomic Inheritance in the Dioecious Tree Maclura pomifera (Raf.) Schneiden_US
dc.typeArticleen
dc.identifier.journalJournal of Heredityen
dc.subject.keywordTolmiea menziesii saxifragaceaeen_US
dc.subject.keywordPolyploidyen_US
dc.subject.keywordAutotetraploidyen_US
dc.subject.keywordAutopolyploidyen_US
dc.subject.keywordTurneraceaeen_US
dc.subject.keywordMoraceaeen_US
dc.identifier.volume87en_US
dc.identifier.issue6en_US
dc.identifier.startpage469en_US
dc.rightsArchived with thanks to Journal of Heredityen
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