RFLP diversity in the nuclear genome of Acacia mangium

Article Abstract:

Genetic diversity in restriction fragment length polymorphism (RFLP) has been studied in the nuclear genome of the Acacia mangium trees of Australia and New Guinea. Diversity varied significantly from one population to another. Evidence of genetic differentiation was found, of which 75% could be attributed to dfferences between four geographical regions. Restrictions to gene flow associated with expansions/contractions of rainforests coming from sea level changes and climate changes may have existed.

Gene mutations, Gene mutation, Biodiversity, Trees, Trees (Plants), Genetic polymorphisms, Species diversity, Population genetics, Biogeomorphology, Inbreeding

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The yellow variegated mutant of Arabidopsis is plastid autonomous and delayed in chloroplast biogenesis

Article Abstract:

A study was conducted to analyze the yellow variegated mutant of Arabidopsis thaliana. Electron and chlorophyll fluorescence microscopy were carried out on the samples. Pigments were then extracted at 65 degrees C to perform high performance liquid chromatography analyses of chlorophyll and carotenoid pigments. Results indicated the presence of a stochastic element in the light regulation of anthocyanin accumulation.

Analysis, Carotenoids, Arabidopsis thaliana, Chlorophyll

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Restriction map and maternal inheritance of chloroplast DNA in Eucalyptus nitens

Article Abstract:

The construction of a restriction map of the chloroplast genome in Eucalyptus nitens using five restriction enzymes shows that the chloroplast genome is 151 kb in size, possessing the inverted repeat characteristic of most angiosperms, and that the chloroplast genome was maternally inherited in all progeny of these crosses. The genome is colinear with the petunia chloroplast genome and with angiosperms in general.

Usage, Chloroplasts, Eucalyptus

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