Implications of the plastid genome sequence of typha (typhaceae, poales) for understanding genome evolution in poaceae.

ABSTRACT: Plastid genomes of the grasses (Poaceae) are unusual in their organization and rates of sequence evolution. There has been a recent surge in the availability of grass plastid genome sequences, but a comprehensive comparative analysis of genome evolution has not been performed that includes any related families in the Poales. We report on the plastid genome of Typha latifolia, the first non-grass Poales sequenced to date, and we present comparisons of genome organization and sequence evolution within Poales. Our results confirm that grass plastid genomes exhibit acceleration in both genomic rearrangements and nucleotide substitutions. Poaceae have multiple structural rearrangements, including three inversions, three genes losses (accD, ycf1, ycf2), intron losses in two genes (clpP, rpoC1),

SUBMITTER: Guisinger MM 

PROVIDER: S-EPMC2825539 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature