Scientists have corrected a phylogenomic study published in June 2023, which examined the evolutionary relationship between eukaryotes and Asgard archaea, revealing that eukaryotes likely emerged from an Asgard archaeal ancestor. The correction, published in Nature, addressed redundancies in the dataset used for the study, according to Nature News.
The original study, published on June 14, 2023, included a phylogenomic analysis that suggested eukaryotes and the heimdallarchaeial order Hodarchaeales form a monophyletic group. The researchers used a set of 57 phylogenetic markers (NM57) to reach their conclusions. However, after publication, the team discovered that three of these markers were partially redundant, belonging to paralogous families. As a result, the dataset was reduced to 54 non-redundant markers, according to Nature News.
This correction is one of many developments covered in recent news reports. Other stories include advancements in chemistry, such as new catalyst development strategies, and the rise of AI tools like OpenClaw and "QuitGPT," the latter emerging due to user dissatisfaction, according to multiple sources. Prince William's conservation efforts were also highlighted in multiple reports, including those from NPR News and Nature News.
The news also touched upon the potential for cheaper electric vehicles in Africa and the fallout from Norwegian biathlete Sturla Holm Laegreid's cheating confession, as reported by Nature News. Additionally, research on meditation's impact on brain activity, revealing heightened cerebral engagement during practice, was mentioned by NPR News.
The past year has seen a surge in Chinese AI models that rival Western counterparts in performance but at significantly lower costs, with open-source models like Moonshot AI's Kimi K2.5 and Alibaba's Qwen family gaining popularity, according to MIT Technology Review. This shift towards open-weight models is poised to reshape AI innovation and standards, potentially challenging the dominance of proprietary US models.
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