Genomic and genetic relationships among species of Leymus (Poaceae: Triticeae) inferred from 18S-26S ribosomal genes.

@article{Anamthawatjnsson2001GenomicAG,
  title={Genomic and genetic relationships among species of Leymus (Poaceae: Triticeae) inferred from 18S-26S ribosomal genes.},
  author={Kesara Anamthawat-j{\'o}nsson and Sigr{\'i}dur Klara B{\"o}dvarsd{\'o}ttir},
  journal={American journal of botany},
  year={2001},
  volume={88 4},
  pages={553-9}
}
The 18S-26S ribosomal genes in three closely related species of Leymus (Poaceae: Triticeae) were examined using fluorescence in situ hybridization (FISH) and restriction fragment length polymorphism (RFLP). Both approaches revealed a close relationship between L. arenarius (8x = 56, northern European) and L. racemosus (4x = 28, central Eurasian), whereas L. mollis (4x = 28, northern American/Pacific) was distinct. Each species had three homologous pairs of major rDNA loci: a1, a2, and a3 for L… CONTINUE READING