Among the identified duplication events, only two subtilase genes (LOC100251507 on XIX chromosome and LOC100252770 on XII chromosome) are retained duplicates that are located in both duplicated chromosomal regions, whereas all others lack corresponding duplicates.
Furthermore, 16 block pairs covered 24 CCCH paralogous pairs by whole genome duplication, and 23 block pairs only harboured CCCHs on one of the blocks and lack the corresponding duplicates, suggesting that dynamic changes may have occurred following segmental duplication which results in the loss of some genes.
Compared to the corresponding Duplicated with Checking (DWC) architectures, the proposed TSC-based designs are more efficient in terms of area, throughput/area, and power consumption.
We discovered only five sets of duplicated UCRs, all of which are adjacent to corresponding duplicated genes.
Therefore the unusual age profile of paralogous genes in tandem or in non-homeologous chromosomes indicates that their corresponding duplicated homeologous genes might have been deleted during the evolution.
We assessed, at genome scale, the time of origin of duplicated segments in rice for the ten largest segments (> 10 Mb) for which sufficient data was available to analyze the distribution of pairwise synonymous substitution rates (Ks) among corresponding duplicated genes.
Among them, 140 genes lacked duplicates on the corresponding duplicated blocks, suggesting that dynamic rearrangement, mutation or segmental loss may have occurred following the segmental duplication.
BACs gmw1-74i13 and gmw1-52d3, corresponding to duplicate loci anchored by N-hydroxycinnamoyl benzoyltransferase (HCBT) genes, were identified, sequenced and annotated by Schlueter [ 8].
In the Drosophilid lineage, the furin-inhibitory RCL (exon 5) is maintained in all species as well as exons 6-8 in the melanogaster sub-group, but the corresponding exons duplicate and diverge in the 7 outgroup species [ 38].
