Fig. 1.

Syntenic relationships for the S locus to rice chromosome 5 and chromosome 1 and the Z locus to rice chromosome 4 and chromosome 2 of different grass species. MapChart (Voorrips, 2002) was used to create the maps. (A, B) Syntenic relationships for the S locus of rice chromosome 5 and chromosome 1 of different grass species: markers and candidate genes are indicated in different colours for the different species: Hordeum bulbosum (Kakeda et al., 2009) in orange; Secale cereale (Korzun et al., 2001) in green; Phalaris coerulescens (Bian et al., 2004) in blue and Lolium perenne (Yang et al., 2009) in dark red. (A) Relationship between the different grass markers on chromosome 1 and rice chromosome 5. The red arrows as well as the red part of each chromosome represent the S region. (B) Representation of the physical position of the closest markers (underlined) as well as candidate genes (Kakeda et al., 2009; Yang et al., 2009). The other markers linked to the rice chromosome 5 in (A) are represented by the coloured bars on the chromosome with the same position. (C, D) Syntenic relationships for the Z locus of rice chromosome 4 and chromosome 2 of different grass species: markers and candidate genes were indicated in different colours for the different species: Secale cereale (Korzun et al., 2001; Hackauf and Welhing, 2005) in green and blue, respectively; Phalaris coerulescens (Bian et al., 2004) in orange and Lolium perenne (Yang et al., 2009; Shinozuka et al., 2010) in dark red. (C) Relationship between the different grass markers on chromosome 2 and rice chromosome 4. The red arrows as well as the red part of each chromosome represent the S region. (D) Representation of the physical position of the closest markers (underlined) as well as candidate genes (Yang et al., 2009; Shinozuka et al., 2010). The other markers linked to the rice chromosome 4 in (C) are represented by the coloured bars on the chromosome with the same position.