Balanced gene losses, duplications and intensive rearrangements led to an unusual regularly sized genome in Arbutus unedo chloroplasts.

Completely sequenced plastomes provide a valuable source of information about the duplication, loss, and transfer events of chloroplast genes and phylogenetic data for resolving relationships among major groups of plants. Moreover, they can also be useful for exploiting chloroplast genetic engineering technology. Ericales account for approximately six per cent of eudicot diversity with 11,545 species from which only three complete plastome sequences are currently available.

Genetic diversity and the reproductive system in related species of antirrhinum.

Background And Aims: Seven related species of Antirrhinum (A. siculum, A. majus, A.

Allozymic differentiation of the Antirrhinum majus and A. siculum species groups.

Background And Aims: Fifty-two populations were sampled in order to establish the taxonomic delimitation and relationships of eight taxa belonging to the A. majus L. and A.

Low levels of allozyme variability in the threatened species Antirrhinum subbaeticum and A. pertegasii (Scrophulariaceae): implications for conservation of the species.

Aims: This study was designed to compare levels of genetic variation and its partitioning in three related species of Antirrhinum, A. subbaeticum, A. pertegasii and A.

The Arabidopsis copper transporter COPT1 functions in root elongation and pollen development.

Copper plays a dual role in aerobic organisms, as both an essential and a potentially toxic element. To ensure copper availability while avoiding its toxic effects, organisms have developed complex homeostatic networks to control copper uptake, distribution, and utilization. In eukaryotes, including yeasts and mammals, high affinity copper uptake is mediated by the Ctr family of copper transporters.

Allozymic differentiation of the Antirrhinum graniticum and the Antirrhinum meonanthum species groups.

Forty populations from eight taxa belonging to six species of Antirrhinum were studied for electrophoretic differentiation at 14 allozyme loci. All the studied species show that marker alleles and genetic distances between conspecific populations are lower than for other species of the genus. Results permit the recognition of A.

Population subdivision and genetic diversity in two narrow endemics of Antirrhinum L.

Genetic diversity and its partition within and among populations and families of two species of Antirrhinum L., A. charidemi Lange and A.