This was revealed during the Italian investigation The same “jumping genes” that work in the human brain are present in the brains of two species: the squid vulgaris, the common squid and the squid bimaculoides, the California squid..
Of The neurological and cognitive complexity of these octopuses is complex live in a Molecular analogy With the human brain, a study was published BMC Biology And coordinated by Trieste High International High School (CISSA) and Naples Aquarium.
The researchers noted that «The octopus is an exceptional creature with very complex brains and invertebrates with unique cognitive abilities. There is so much in a way More common with invertebrates than invertebrates«. The study was conducted by more than one international team Twenty researchers from all over the world.
More than 45% of the human genome consists of these genes, known as “jumping genes” called transposons. By molecular copying and grafting or by cutting and grafting mechanisms, they can “move” from one point in a person’s gene to another.As stated in the document.
In most cases, these will be mobile components quietly: They have no visible effects and have lost mobility. Of these mobile components, the most relevant belong to the so-called family LINE (long intermediate atomic elements)Found in hundreds of specimens in the human genome and is still active.
According to a new study, The squid gene, like humans, is full of “jumping genes”, most of which are inactive. By focusing on transpositions that are more capable of copying and pasting, researchers have identified an element of the LINE family in certain areas of the brain that are critical to the cognitive abilities of these animals.
This discovery provides clues to understand the secret behind the ingenuity of these marine animals. Discovery is possible Sophisticated genetic sequencing techniques, Used to analyze the molecular composition of genes that operate in the octopus’ nervous system.
«The discovery of an element of the active LINE family in the brain of two squid speciesThis is very important because it supports the idea that these elements have a specific function beyond copying and gluing, “he explained. Remo Sangus, Director of the SISSA Computational Genomics LaboratoryHe started working on the project when he was a researcher at Anton Dorn Zoo and Fisheries in Naples.
Many scientists believe so LINE transpositions are related to cognitive skills such as learning and memory: They are especially active HippocampusThe brain’s most important structure for neurological control of learning processes.
«The squid brain is similar in function to mammals in many ways.”He pointed out Craziano Fiorito, Director of the Department of Biology and Evolution of Marine Life Anton Dorn Zoological Center added: “For this reason, the identified LINE element represents a very interesting candidate for studying and improving the development of intelligence.”
“This resemblance between humans and squid is a striking example of the function of a LINE element in cognitive abilities. Coherent evolutionAn event there, In two genetically distant organisms, the same molecular process develops independently to respond to similar needs.Giuseppe Petrosino of Anton Dorn Zoo and Stefano Costinsic of the Italian Institute of Technology quoted the document.