Satellite Symposium 5: Molecular Breeding
Description
The section Phleum of the genus Phleum contains 3 species groups and, depending on the taxonomic classification used, these may be treated as 3 or 6 individual species (Joachimiak & Kula, 1997; Joachimiak, 2004). Firstly, there is the P. pratense group consisting of a series of diploid, tetraploid, hexaploid and octoploid forms. The diploid (2n=14) is usually known as Phleum bertolonii (syn. P. pratense spp bertolonii: syn P. nodosum) and/or P. hubbardii, while the tetraploid, hexaploid and octoploid are known as P. pratense. Secondly there is the P. alpinum group consisting of 2 contrasting diploid species, P. rhaeticum and P. commutatum, and a tetraploid P. commutatum. Finally there is the lesser known Mediterranean annual, Phleum echinatum, with a reduced chromosome number of 10.
Citation
Stewart, A. V.; Joachimiak, A.; and Ellison, N. W., "Tracing the Origins of Timothy Species (Phleum Sp.)" (2023). IGC Proceedings (1993-2023). 142.
https://uknowledge.uky.edu/igc/20/satellitesymposium5/142
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Tracing the Origins of Timothy Species (Phleum Sp.)
The section Phleum of the genus Phleum contains 3 species groups and, depending on the taxonomic classification used, these may be treated as 3 or 6 individual species (Joachimiak & Kula, 1997; Joachimiak, 2004). Firstly, there is the P. pratense group consisting of a series of diploid, tetraploid, hexaploid and octoploid forms. The diploid (2n=14) is usually known as Phleum bertolonii (syn. P. pratense spp bertolonii: syn P. nodosum) and/or P. hubbardii, while the tetraploid, hexaploid and octoploid are known as P. pratense. Secondly there is the P. alpinum group consisting of 2 contrasting diploid species, P. rhaeticum and P. commutatum, and a tetraploid P. commutatum. Finally there is the lesser known Mediterranean annual, Phleum echinatum, with a reduced chromosome number of 10.
