tldrdaily.news logo
Tag

Phylogenetic Analysis

All articles tagged with #phylogenetic analysis

health1 year ago

Zoo Animals Test Positive for SARS-CoV-2, Human Transmission Suspected

A study at Belo Horizonte Zoo in Brazil found that 19.1% of tested animals were positive for SARS-CoV-2, likely contracted from humans. Researchers identified Alpha and Omicron variants in animals like wolves, deer, and gorillas, suggesting human-to-animal transmission. The findings highlight the need for continuous monitoring and genomic surveillance of SARS-CoV-2 in wildlife to understand transmission dynamics and prevent future zoonotic outbreaks.

via University of Minnesota Twin Cities|
#animal-transmission#health#phylogenetic-analysis
genetics1 year ago

"Unchanged for 250 Million Years: The Dynamics of Butterfly Genome Evolution"

A study on Lepidoptera, the insect order comprising moths and butterflies, reveals the dynamics of chromosome evolution and karyotype variation. The research, based on 210 chromosomal genome assemblies, identifies ancestral linkage groups (ALGs) and shows that most species have retained intact ALGs, with infrequent fusions and rare fissions. However, eight lineages have experienced extensive chromosomal rearrangements, resulting in fragmented Merian elements. The study provides insights into the constraints and mechanisms influencing chromosome evolution in Lepidoptera.

via Nature.com|
#chromosome-evolution#genetics#genome-architecture
anthropologyarchaeology2 years ago

"Unearthing Ancient Mysteries: A Potential New Human Species Discovered in China"

The discovery of the Hualongdong 6 skull in China, dating back 300,000 years, has intrigued researchers who believe it may represent a new "third lineage" in the human family tree. The skull exhibits a combination of modern human and archaic hominin traits, making it a unique and potentially significant find. While it is unclear whether this individual represents a new species or a close relative of Homo sapiens, further research and the discovery of additional fossils are needed to draw definitive conclusions.

via IFLScience|
#anthropologyarchaeology#archaic-hominins#china
paleontology2 years ago

Ancient Fossil Unveils Cambrian Explosion Secrets

A fossil tunicate named Megasiphon thylakos, discovered in the mid-Cambrian Marjum Formation of Utah, provides evidence of an early biphasic life cycle and suggests that fundamental components of the modern tunicate body plan were established shortly after the Cambrian Explosion. The fossil could potentially push back the origins of vertebrates, including humans. The discovery adds to the growing body of evidence supporting the abruptness of the Cambrian Explosion and challenges Darwinian evolution.

via Discovery Institute|
#cambrian-explosion#evolution#fossil-record
crime2 years ago

Convicted HIV-Infected Doctor Dies.

Dr. Richard J. Schmidt, a former Lafayette doctor convicted of attempted murder for injecting his former mistress with HIV-tainted blood, has died at the age of 74 while serving a 50-year sentence at Elayn Hunt Correctional Center in St. Gabriel. Schmidt was found guilty in 1998 of injecting his former mistress, Janice Trahan, with HIV-tainted blood under the guise of giving her a B-12 vitamin injection. Schmidt unsuccessfully challenged his conviction in state and federal court, seeking appeals, relief and other forms of legal intervention in his case.

via The Advocate|
#attempted-murder#crime#hiv