Chromosome Number of a Sub-Antarctic Rubus

Sub-Antarctic marine aerosol

Introduction Conclusions References

Chromosome Number Variation in Iranian Populations of Acorus calamus

Different ploidy levels, diploid (2n=2x=24) to hexaploid (2n=6x=72) have been reported for Acorus calamus, a perennial medicinal plant. According to available information, there is a significant relationship between the ploidy level and essential oil compositions and medicinal properties of this important genetic resource. However, there is no information about the chromosome number of A. calam...

The Status and Trends of Antarctic and Sub - Antarctic Seabirds

Chromosome Numbers and Karyotypes of Four Species Rubus L. from North of Iran

Karyotype study was performed across 7 populations of 4 Rubus species growing in Iran. The results showed that the chromosome numbers of R. sanctus (2n=2x=14) diploid, R. caesius, and R. discolor were (2n=4x=28) tetraploids, R. persicus (2n=8x=56) octoploid. The chromosome numbers of R. discolor, and R. persicus were reported here for the first time. Karyotypic formula also varied between the s...

Activities in the Sub - Antarctic

Current scientific activity in the sub-Antarctic islands is assessed in the context of past achievements and potential future issues. Brief mention is made of the scientific expeditions of the nineteenth and twentieth centuries. A survey of international bibliographic databases revealed the dominance of research in the life sciences, reflecting the unique characteristics of sub-Antarctic ecosys...