Publications by authors named "K Fietz"
Article Synopsis
- Scientists have found that high-grade serous ovarian cancer (HGSOC) mostly starts in the fallopian tubes instead of the ovaries, but why this happens is still a mystery.
- The study shows that cells in the fallopian tubes are different from those on the ovarian surface, which helps explain why cancers arise from the tubes.
- They discovered that these fallopian tube cells have more problems dealing with stress and repairing DNA, and certain genetic factors make the cancer even worse, especially after menopause.
How far do marine larvae disperse in the ocean? Decades of population genetic studies have revealed generally low levels of genetic structure at large spatial scales (hundreds of kilometres). Yet this result, typically based on discrete sampling designs, does not necessarily imply extensive dispersal. Here, we adopt a continuous sampling strategy along 950 km of coast in the northwestern Mediterranean Sea to address this question in four species.
View Article and Find Full Text PDFExtensive fishing has led to fish stock declines throughout the last decades. While clear stock identification is required for designing management schemes, stock delineation is problematic due to generally low levels of genetic structure in marine species. The development of genomic resources can help to solve this issue.
View Article and Find Full Text PDFLong-distance (>40-km) dispersal from marine reserves is poorly documented; yet, it can provide essential benefits such as seeding fished areas or connecting marine reserves into networks. From a meta-analysis, we suggest that the spatial scale of marine connectivity is underestimated due to the limited geographic extent of sampling designs. We also found that the largest marine reserves (>1000km) are the most isolated.
View Article and Find Full Text PDFBackground: Deciphering the mechanisms governing population genetic divergence and local adaptation across heterogeneous environments is a central theme in marine ecology and conservation. While population divergence and ecological adaptive potential are classically viewed at the genetic level, it has recently been argued that their microbiomes may also contribute to population genetic divergence. We explored whether this might be plausible along the well-described environmental gradient of the Baltic Sea in two species of sand lance (Ammodytes tobianus and Hyperoplus lanceolatus).
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