2nd International Triticeae Symposium
Richard R-C. Wang
Leymus Hochst. is a perennial genus of Triticeae. All species in Leymus have the genomes NX. The genome N is from the genus Psathyrostachys. Two Psathyrostachys species, diploid P. huashanica Keng ex Kuo and P. juncea (Fische.) Nevski (2n= 14), were hybridized with allotetraploid, Leymus secalinus (Georgi.) Tzvelev and L. multicaulis (Kar. & Kir.) Tzvelev. Meiotic behavior of the synthetic hybrids was studied. The chromosome pairings indicated that one L. secalinus genome and one L. multicaulis genome were closely homologous with both P. huashanica and P. juncea genomes. The data of genomic analysis in the hybrids of P. huashanica crossed with L. secalinus and L. multicaulis are so similar to those in the hybrids of P. juncea crossed with L. secalinus and L. multicaulis, there is no significant difference between them. Both P. huashanica and P. juncea are possible donors of the N genome of L. secalinus and L. multicaulis.
Sun, Genlou; Yen, Chi; and Yang, Junliang, "The Study on N Genome of Leymus Species" (1994). Herbarium Publications. Paper 22.