Low genetic variability in the highly endangered Mediterranean monk seal

Article Abstract:

The first description of nuclear genetic variability in the only remaining sizable colony of the Mediterranean monk seal (Monachus monachus), located at Cap Blanc (Western Sahara, Mauritania), whose estimated size during the study period (1994-May 1997) was about 320 individuals is given. Several analytical methods show that, as a consequence of a severe bottleneck, the population has suffered a decrease in genetic variability over the last few centuries.

Analysis, Monk seals, Genetic variation

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Accumulation of transposable elements in the genome of Drosophila melanogaster is associated with a decrease in fitness

Article Abstract:

Presenting the data on transposable element (TE) copy numbers, fitness, and hatchability of replicates derived from two homozygous laboratory strains of Drosophila melanogaster-2b and Harwich. Assuming a weak deleterious effect of each TE insertion, a decrease in fitness is expected with an increase in genomic TE copy number.

Drosophila, Transposons, Genomics

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