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Created the first genomic catalog of endangered chimpanzees | Primates
Scientists have created the first catalog of the genomic diversity of endangered chimpanzee species. This list was compiled on the basis of 828 samples from various areas of Africa where these primates live. Precisely because it cuts across biological and geographic data, this database helps to better understand not only the detailed structure of these populations, but also patterns of migration, isolation, and contact. The systematization of this information also allows us to “design” a genetic cartography that can determine the probable origin chimpanzee abandoned or illegally sold primate meat.
“We have built a geogenetic map showing that genetics is a good predictor of geography. So sequencing [parte do genoma de] chimpanzee of unknown origin, we can determine the most likely place of origin based on our database,” explains PÚBLICO Claudia Fonzere, researcher at the Institute for the Evolution of Biology, an organization created through a partnership between Pompeu Fabra University in Barcelona. and the Spanish Higher Council for Scientific Research. The scientist is the first author of the study. published Wednesday in a scientific journal Cellular genomics.
The commitment of the authors to the description of the genomic diversity of this variety Claudia Fonzere ensures that this is an attempt to offer conservation professionals a “tool” that can be useful for wildlife conservation. “AT chimpanzee populations showed a big decline in recent years,” says the scientist.
Hundreds of samples collected over “over a decade” have diversified the database by allowing specific genomic characteristics to be linked to specific locations. Thus, the catalog can serve as a guide to determine the origin chimpanzee illegally seized, which, however, are confiscated by the authorities. Or, for example, to rebuild the route of slaughter and illegal trade in primate meat.
Feces “hunters”
The catalog of genomic diversity exists today only because of an unusual activity: hunting for animal feces. The approach proved, according to the Spanish scientist, an effective alternative to invasive methods of collecting biological samples. “This is a very important point in the study, since this type of collection does not involve any contact. [físico] with animals. Therefore, they are only concerned about the presence of scientists in the habitat,” explains Claudia Fontzere.
Tomás Marques-Bone, principal investigator at the same Spanish institute and co-author of the study, also highlights the “impressive” nature of this non-invasive technique in a press release. “Somehow we have the best of both worlds — a valuable source of genomic DNA, but assembled in such a way that the animals never need to be contacted,” says Marquez-Bone.
Claudia Fontzere believes that the method opens the way to obtaining specimens of this endangered species in a natural context, “which is usually very difficult.” “Previous studies have used biological samples from confiscated chimpanzees (of uncertain geographic origin) or from zoos. With our approach, we can go even further and collect a lot of wild individuals, thus filling the gaps in many African regions,” notes Claudia Fontzere.
The creation of the catalog would not have been possible without the coordinated collection of thousands of chimpanzee fecal samples by the Pan-African Program (PanAf) at 48 locations, the study said in a press release. The “hunt” for animal waste had to be very fast to ensure the freshness of the material collected from the forests. Thereafter, the samples were stored in ethanol and then dried so that they could be preserved for many years after collection.
Also of decisive importance, according to the same note, was the development of methods for extracting and “rendering” DNA fragments found in primate feces. Fecal matter includes plant and bacterial remains, only a small part of this volume corresponds to the alleged genetic material of the animal.
“Stalas are complex specimens because they contain very little host DNA, typically 1 to 3%. And even this DNA is highly degraded and fragmented. Since they are more difficult to work with than blood or tissue samples, we had to invest heavily in developing ways to enrich the chimpanzee DNA fractions found in faeces,” says Claudia Fonzere of PÚBLICO. The authors of the study now believe these protocols could be used to study different primates or even other endangered species.
Prior to this study, there were already databases of thousands of geo-referenced fecal samples, but they represented only tiny fragments of the chimpanzee genome. “Because we use whole chromosome sequencing [o de número 21] with thousands of independent markers, compared to a few microsatellite markers, we have a much broader view of the genome, and [que] the very complex evolutionary history of the chimpanzee needs to be clarified and described,” says Marquez-Bone.
Because the fossil record and ancient genetic material chimpanzee rare, the solution that remains to reconstruct the history of these primates lies in the study of living individuals. Four subspecies of chimpanzees are known, but questions remain about the connections and relationships between them, according to the authors. The scientific community has long wondered about the emergence of contact between these subspecies.
“We have been able to show, using various methods of analysis of very old and later variations, that chimpanzee history it is complex and in some ways very similar to our own species,” says Mimi Arangelovic, study co-author and researcher at the Max Planck Institute for Evolutionary Anthropology in Germany, in a press release.
“Chimpanzee subspecies were indeed segregated in the past, but there has also been genetic exchange between populations since then. This explains very well why different studies aimed at reconstructing different ancestral periods have come to different conclusions about the evolutionary history of chimpanzees,” adds Mimi Arangelovic.
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Tech
‘My power is really low’: NASA’s Mars Insight rover prepares to launch from the Red Planet
NASA Lander InSight He has delivered what may be his last message from Mars as he embarks on a historic mission to uncover the secrets of the Red Planet’s interior.
In November, the space agency warned that the probe could be running out of time as dust continued to condense and stifle InSight’s power.
“Spacecraft power generation continues to decline as windblown dust accumulates on solar panels,” NASA said in a statement. Update November 2. “The end is expected to come in the coming weeks.”
message shared NASA The InSight Twitter account tweeted on Monday: “My power is very low so this might be the last photo I can upload. Don’t worry about me: my time here has been productive and uneventful. If I can keep talking to my mission team, I will—but I will.” Subscribe here soon. Thank you for staying with me.”
A geologist robot armed with a hammer and a seismograph first reached the barren expanse of Elysium Planitia in November 2018.
Since then, she has carried out geological excavations, taking the first measurements of earthquakes with a high-tech seismometer placed right on the surface of Mars.
Last month, the solar-powered car released an update to remind us of its time in space.
“I was lucky to live on two planets. Four years ago I made it safely to the second one, much to the joy of my family at first. Thanks to my team for taking me on this journey of discovery. I hope I can be proud of you.”
According to the published mission, Insight has measured more than 1,300 seismic events since it was published, and more than 50 of them had signals clear enough for the team to extract information about their location on Mars. Results.
The probe’s data also provided detailed information about Mars’ interior, liquid core, surprisingly variable remnants beneath the surface of an extinct magnetic field, climate and seismic activity.
old for Its launch in 2018NASA Chief Scientist Jim Green said the mission was “fundamental to understanding the origins of our solar system and how it became what it is today.”
NASA will not declare the mission complete until Insight confirms the arrival of two spacecraft orbiting Mars that are relaying their information back to Earth.
In 2018, the veteran rover announced the capabilities end of his 15 year stay Sending an incomplete photo of the Valley of Perseverance.
A severe dust storm darkened the sky around the solar-powered rover, shattering the sun and leaving behind a dark image with white spots due to camera noise. The transmission is interrupted before the complete image can be transmitted.
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Tech
What’s new on February 7, 2023
Being very close companies, OPPO and OnePlus have decided to create a new partnership, with the latter being a pioneer in the market. It has become the representative of the best smartphones in the group, and this will be seen very soon.
Proving this, OnePlus has announced that it will have news soon. The following brand assets will be announced on February 7, 2023. We are talking about OnePlus 11 5G and Buds Pro 2.
In recent years, OnePlus has been showcasing new hardware in an attempt to find a new place in the market. The brand has not always seen its full potential, betting on mid-range or entry-level smartphones.
The situation is changing, and the novelty will go on sale in early 2023, February 7. It is on this day that the new OnePlus 11 5G will be presented with all the expected news. We definitely have the new Qualcomm Snapdragon 8 Gen 2 SoC here. There's still 16GB of storage left and 256GB of onboard storage.
It is expected that he will receive a 6.7-inch OLED display with a resolution of 1440p and a frequency of 120 Hz. In the field of photography, we will have an important change: a 50 MP main camera, a 48 MP ultra wide-angle camera and a 32 MP telephoto lens with 2x zoom. For selfies and video calls, you'll have a 16-megapixel camera.
The photography partnership with Hasselblad will continue with OnePlus for fine-tuning and some additions. This alliance has brought important results for the best smartphones of the brand, guaranteeing the best photos in any situation.
In addition to the new OnePlus 11 5G, another brand new feature is also expected to arrive at the event. We're talking about the Buds Pro 2, which are solidifying an audio commitment that's becoming more of a reality. The brand promises "rich stereo quality sound with crystal clear clarity".
Stays like this marked by the beginning of February, another important novelty will enter the market. OnePlus wants to reclaim its place, and that will be the brand's bet for years to come. OnePlus 11 5G and Buds Pro 2 take the first step in this direction.
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Tech
New POCO Smartphone Seen in Certification May Debut Soon
According to information provided by Mukul Sharma, the unidentified POCO device can be identified by the model number 22127PC95I. Due to the fact that it was first seen online, the marketing name of this equipment is still a mystery.
POCO has not launched new mobile devices, including smartphones, to the market for some time now. On the other hand, several POCO smartphones such as POKO X5 and X5 Pro have been spotted on various certification sites, suggesting that the company will release these products soon. Today a new smartphone from the sub-brand xiaomi has been spotted on the BIS India website but the device does not have a name or any other details associated with it.
A new POCO device (model number 22127PC95I) has been included in the Indian BIS certification. POCO F5 has the model number 23013PC75I. #A LITTLE pic.twitter.com/NAFloP5Crt
— Mukul Sharma (@stufflistings) December 19, 2022
According to information provided by Mukul Sharma, the unidentified POCO device can be identified by the model number 22127PC95I. Due to the fact that it was first seen online, the marketing name of this equipment is still a mystery. It is possible that it will debut as a mid-range smartphone. The Bureau of Indian Standards (BIS) website, other than the model number of the smartphone, does not provide any additional information about the device. However, this seems to indicate that the product will be available in the Indian market very soon.
In other related news, POCO X5 5G has recently been seen on several certification sites including SIRIM in Malaysia, BIS in India and the US FCC. According to various sources, it is possible that this is a renamed or modified version Redmi Note 12 5Gwhich was recently released in China.
It is supposed to be equipped screen 6.67″ AMOLED display with 120Hz refresh rate and chipset Snapdragon 4 Gen 1 inside. Can run MIUI 13 based on android 12 and have LPDDR4x RAM in addition to UFS 2.2 storage. The front camera is rumored to be 8MP while the main rear camera will be 48MP with 2MP depth. May have the ability drums 5000 mAh and 33W fast charging support.
In addition POCO X5 Pro 5G has recently been seen on various sites dedicated to certification. The battery is said to have a capacity of 5000 mAh and can charge at 67W. It will come with MIUI 14 preinstalled and will support n5, n7, n38, n41, n77 and n78 network bands. 5G.
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