A recently described species of black fly, Simulium wayani Takaoka and Chen, from the island of Timor was chromosomally mapped to provide insights into its evolutionary and biogeographic history. The morphologically based species status of S. wayani is supported by a suite of fixed chromosomal rearrangements and unique sex chromosomes derived primarily from a large pool of polymorphisms in the S. ornatipes complex in Australia. The banding patterns of its polytene chromosomes indicate that S. wayani is closely related to a pair of homosequential cryptic species (S. norfolkense Dumbleton and S. ornatipes cytoform A2) in the S. ornatipes Skuse complex on mainland Australia; all three species uniquely share the same amplified band in their chromosomal complement. The low level of polymorphism and heterozygosity in S. wayani, relative to Australian populations of the S. ornatipes complex, suggests few colonization events from the larger land mass.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.actatropica.2019.02.017 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A thorny tale: The origin and diversification of Cirsium (Compositae).
Mol Phylogenet Evol
January 2025
Autonomous University of Barcelona, Systematics and Evolution of Vascular Plants (UAB) - Associated Unit to CSIC by IBB - Cerdanyola del Vallès, Spain.
Widely distributed plant genera offer insights into biogeographic processes and biodiversity. The Carduus-Cirsium group, with over 600 species in eight genera, is diverse across the Holarctic regions, especially in the Mediterranean Basin, Southwest Asia, Japan, and North America. Despite this diversity, evolutionary and biogeographic processes within the group, particularly for the genus Cirsium, remain underexplored.
View Article and Find Full Text PDFComparative diversification analyses of Hydrangeaceae and Loasaceae reveal complex evolutionary history as species disperse out of Mesoamerica.
Am J Bot
January 2025
School of Biological Sciences, Washington State University, Pullman, 99164, Washington, USA.
Article Synopsis
- The study explores how intercontinental movements of certain plant lineages (Hydrangeaceae and Loasaceae) may promote ecological opportunities and species diversity.
- Researchers reconstructed a phylogeny using molecular data and analyzed speciation rates, finding that while some clades showed increased diversification, it wasn't linked to new continental colonization.
- The findings suggest that climate change in the Miocene played a more significant role in species diversification rather than dispersal across continents, indicating that changes in habitats drove evolutionary changes instead of location shifts.
The formation, maintenance, and loss of island biodiversity.
Yi Chuan
January 2025
Center for Global Change and Ecological Forecasting, Zhejiang Zhoushan Island Ecosystem Observation and Research Station, Institute of Eco-Chongming, Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China.
Due to the unique geographical features of large numbers, isolated by water and diverse formation histories, islands have become natural laboratories for ecological and evolutionary research. Islands have a high proportion of endemic species and disharmony in representing the species compared with that in the continent, which provides a good opportunity to explore the formation of island biodiversity. In this review, we focuse on island ecosystems and describes the progress of research in island biogeography in recent years from three aspects: formation, maintenance, and loss of island biodiversity.
View Article and Find Full Text PDFHeating up three cold cases in Norway using investigative genetic genealogy.
Forensic Sci Int Genet
December 2024
Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway.
With the advent of commercial DNA databases, investigative genetic genealogy (IGG) has emerged as a powerful forensic tool, rivalling the impact of STR analyses, introduced four decades ago. IGG has been frequently applied in the US and tested in other countries, but never in Norway. Here, we apply IGG to three cold criminal cases and successfully identify the donor of the DNA in two of these cases.
View Article and Find Full Text PDFPlio-Pleistocene Environmental Changes Drove the Settlement of Aotearoa New Zealand by Australian Open-Habitat Bird Lineages.
Mol Ecol
January 2025
Department of Anatomy, University of Otago, Dunedin, New Zealand.
In a changing environment, vacant niches can be filled either by adaptation of local taxa or range-expanding invading species. The relative tempo of these patterns is of key interest in the modern age of climate change. Aotearoa New Zealand has been a hotspot of biogeographic research for decades due to its long-term isolation and dramatic geological history.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!