For both Lhcx and Lhcz genes, only a small number of ESTs, stemming from two different Sanger-based transcriptome sequencing projects, were recorded for each, emphasizing the low abundance of these transcripts under the nonstressed growth conditions used.
Despite screening many of the same genes, only a single gene was identified in both screens.
While the DNA in cells encodes for somewhere between 20,000 and 35,000 genes, only a fraction of these genes are functionally active in any given cell type.
Among these genes, only a fraction plays a role in protein synthesis and nuclear regulation.
Therefore, it remains possible that truncation of both tRNAs and rRNA genes only reflects an independent trend towards minimisation of the mt genome as suggested by Yamazaki et al. [ 77].
Among the REM genes, only VRN1, a class VI gene, is well characterized.
We previously analyzed CMIP and ATP2C2 in the ALSPAC sample and reported an association with nonword repetition for both genes but only in a specific subgroup of language impaired individuals (36).
To retain information rich linker genes only, we applied a statistical threshold test for local enrichment.
Of the eight genes, only PRKCI showed a statistically significant reduction in the heat shock response for both siRNA duplexes when compared with controls.
However, since the amplified genomic regions harboring these genes were typically very large, with an average length exceeding 50 Mb, it is equally likely that both genes are only amplified as a passenger genes.
