Journal
EVOLUTION LETTERS
Volume 3, Issue 1, Pages 43-54Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/evl3.92
Keywords
ancient lakes; adaptive radiation; lake-size changes; fossils; genome DNA analysis
Categories
Funding
- Program to Disseminate Tenure Tracking System of the MEXT
- JSPS KAKENHI [16K18606, 16K07522, 18H01330]
- Grants-in-Aid for Scientific Research [16K18606, 18H01330, 16K07522] Funding Source: KAKEN
Ask authors/readers for more resources
Lake expansion that leads to the formation of new habitats has potential to drive intralacustrine diversification. The ancient Lake Biwa in central Japan has historically experienced substantial changes in the lake size, and it provides a useful system for evaluating the role of lake-size fluctuations in the diversification of endemic fauna. Here, we used genome-wide DNA analyses and reconstructed the diversification history of the endemic freshwater snails belonging to the subgenus Biwamelania with respect to the geological history of Lake Biwa. We found that two genetically distinct snail lineages independently colonized Lake Biwa and they concurrently and rapidly radiated into 15 extant Biwamelania species. A combination of paleontological evidence and molecular dating technique demonstrated that the radiation of Biwamelania was tightly linked to the latest enlargement of the lake about 0.4 million years ago and suggested that increased ecological opportunity associated with the lake expansion drove the rapid adaptive radiation. We propose that the Biwamelania snails in Lake Biwa offer a promising new system for understanding the association between the geological history of the lake and rapid intralacustrine diversification.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available