title: Cytological identification of some trisomics of Russian wildrye (Psathyrostachys juncea).
abstract: Russian wildrye, Psathyrostachys juncea (Fisch.) Nevski (2n = 2x = 14; NsNs), is an important forage grass and a potential source of germplasm for cereal crop improvement. Because of genetic heterogeneity as a result of its self-incompatibility, it is difficult to identify trisomics of this diploid species based on morphological characters alone. Putative trisomies (2n = 2x + 1 = 15), derived from open pollination of a triploid plant by pollen grains of diploid plants, were characterized by Giemsa C-banding. Based on both karyotypic criteria and C-banding patterns, four of the seven possible primary trisomics, a double-deletion trisomic, and two tertiary trisomics were identified.
authors.forename: J Z
authors.initials: JZ
authors.lastname: Wei
authors.forename: W F
authors.initials: WF
authors.lastname: Campbell
authors.forename: G J
authors.initials: GJ
authors.lastname: Scoles
authors.forename: A E
authors.initials: AE
authors.lastname: Slinkard
authors.forename: R R
authors.initials: RR
authors.lastname: Wang