Explosive Tandem and Segmental Duplications of Multigenic Families in Eucalyptus grandis

Explosive Tandem and Segmental Duplications of Multigenic Families in Eucalyptus grandis

Plant organisms contain a large number of genes belonging to numerous multigenic families whose evolution size reflects some functional constraints. Sequences from eight multigenic families, involved in biotic and abiotic responses, have been analyzed in Eucalyptus grandis and compared with Arabidopsis thaliana. Two transcription factor families APETALA 2 (AP2)/ethylene responsive factor and GR...

Segmental Duplications as a Complement Strategy to Short Tandem Repeats in the Prenatal Diagnosis of Down Syndrome

Background: Quantitative fluorescence-polymerase chain reaction (QF-PCR) is an inexpensive and accurate method for the prenatal diagnosis of aneuploidies that applies short tandem repeats (STRs) as a chromosome-specific marker. Despite its apparent advantages, QF-PCR is not applicable in all cases due to the presence of uninformative STRs. This study was carried out to investigate the efficienc...

The floral transcriptome of Eucalyptus grandis.

As a step toward functional annotation of genes required for floral initiation and development within the Eucalyptus genome, we used short read sequencing to analyze transcriptomes of floral buds from early and late developmental stages, and compared these with transcriptomes of diverse vegetative tissues, including leaves, roots, and stems. A subset of 4807 genes (13% of protein-coding genes) ...

Performance of Australian Provenances of Eucalyptus grandis and Eucalyptus saligna in Hawaii

Origins and Impacts of Primate Segmental Duplications

Duplicated sequences are substrates for the emergence of new genes and are an important source of genetic instability associated with rare and common disease. Analyses of primate genomes have shown an increase in the proportion of interspersed segmental duplications within the genomes of humans and great apes. This is in contrast to other mammalian genomes that appear to have their recently dup...