Mitotic metaphase chromosomes of nine Lathyrus species after FISH with rDNA probes, 45S rDNA probe was detected by FITC (green signals), and 5S rDNA probe by Texas red (red signals). The chromosomes were counterstained with DAPI. Bar = 5μ. a) L. paranensis Burkart b) L. nissolia L. c) L. odoratus L. d) L. hirsutus L. e) L. amphicarpos L. f) L. gorgoni Parl. g) L. articulatus L. h) L. sphaericus Retz i) L. incospicuus L.