represent
autopolyploids, or presumed
autopolyploids (Gavrilenko, 2007).
Mating systems in allopolyploids and
autopolyploids generally compliment the type of polyploidy exhibited.
Cytogenetic analyses of
autopolyploids: models and methods for triploids to octoploids.
Turfgrasses can range from apomictic to dioecious, from self-pollinated to cross-pollinated, and can have different ploidy levels, with some species being
autopolyploid or allopolyploid.
In
autopolyploids, although the diversity of genetic potential increases by the development of new alleles, as has been shown in Tolmiea menziesii (Soltis & Rieseberg, 1986) and in Dactylis glomerata (Lum aret & Barrientos, 1990), an
autopolyploid has very little chance of becoming established because multivalents form during meiosis, causing partial sterility.
The strongest evidence for an
autopolyploid mode of origin of H.
Diploid,
autopolyploid, and allopolyploid species that are characteristic of the tribe were used to relate DNA content to previously reported genomic relationships.