Neanderthal Blood Protein Incompatibilities May Have Contributed to Extinction u2a4l

Blood protein differences in Neanderthals might have caused genetic incompatibilities, affecting survival. 59x5y

Neanderthal Blood Protein Incompatibilities May Have Contributed to Extinction

Photo Credit: Pixabay/ ArtSpark 3e304

Evidence suggests Neanderthal blood proteins may have contributed to their extinction.

Highlights
  • Neanderthal blood protein differences linked to health risks
  • Rare RhD type incompatible with other hominid blood types
  • Genetic incompatibilities may explain Neanderthal extinction
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Neanderthals may have contributed to their eventual disappearance as a species. Research involving the genetic sequencing of early hominid populations, including Neanderthals, Denisovans, and Homo sapiens, has revealed significant differences in red blood cell antigens. These variations, according to scientists, might have played a role in their susceptibility to health issues, which could have influenced their inability to thrive in the face of changing environments and interactions with other hominid groups.

Findings from the Study 1e6h68

According to the study published in Scientific Reports, researchers from Aix Marseille Univ, CNRS, EFS, and ADES analysed the genetic structures responsible for red blood cell antigens in three distinct hominid groups. The focus was placed on antigens that determine blood types, including the Rh antigens responsible for positive and negative blood typing. Neanderthals were found to possess an Rh variant, identified as RhD, which remains rare in modern humans and was shown to be incompatible with the blood types of both Denisovans and Homo sapiens.

Impact of Genetic Incompatibilities 19sm

As reported by phys.org, this incompatibility, researchers explained, could have caused hemolytic disease in the offspring of Neanderthal females and males from other hominid species. Hemolytic disease in newborns, often leading to severe health complications, would have likely reduced the chances of survival and reproduction for mixed-species offspring. If interbreeding between Neanderthals and other populations became widespread, these reproductive challenges might have significantly reduced Neanderthal populations over time.

Insights into Neanderthal Decline e216w

The researchers have suggested that while this genetic incompatibility might not be the sole cause of Neanderthal extinction, it represents a plausible contributing factor. Other pressures, such as environmental changes and competition with Homo sapiens, have been widely studied, and this research adds a new dimension to understanding the complexities of Neanderthal decline.

 

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