Your current location:HOME >opinions >Study reveals genetic mechanism behind Tibetans' high 正文
TIME:2024-05-22 10:30:47 Source: Internet compilationEdit:opinions
(Xinhua) 08:47, September 06, 2023BEIJING, Sept. 5 (Xinhua) -- Chinese scientists have identified th
BEIJING, Sept. 5 (Xinhua) -- Chinese scientists have identified the genetic mechanism that allows Tibetans to maintain a high level of reproductive health in an oxygen-deficient highland environment.
Conducted by researchers from the Kunming Institute of Zoology (KIZ) under the Chinese Academy of Sciences, the study was published recently in the journal Current Biology.
According to the study, "The adaptation of Tibetans to high-altitude environments has been studied extensively. However, the direct assessment of evolutionary adaptation, i.e., the reproductive fitness of Tibetans and its genetic basis, remains elusive."
In order to identify a genetic basis for their good reproductive health at high altitudes, the researchers conducted systematic phenotyping and genome-wide association analysis of 2,252 mother-newborn pairs of indigenous Tibetans, covering 12 reproductive traits and 76 maternal physiological traits.
They found that, compared with the lowland immigrants living at high altitudes, indigenous Tibetans show better reproductive outcomes, reflected in their lower abortion rate, higher birth weight and better fetal development.
According to the study, the results of genome-wide association analyses indicate a polygenic adaptation of reproduction in Tibetans, attributed to the genomic backgrounds of both the mothers and the newborns.
"Collectively, these results shed new light on the phenotypic pattern and the genetic mechanism of human reproductive fitness in extreme environments," said He Yaoxi, the corresponding author of the study and a researcher at KIZ.
The study will provide important points of reference for highland medicine and physiology, He added.
Russia begins nuclear drills in an apparent warning to West over Ukraine2024-05-22 10:24
Artemi Panarin scores 49th goal as Rangers beat Senators 42024-05-22 10:15
White House approved more bombs to Israel on day of deadly Israeli attack on aid workers: WAPO2024-05-22 09:48
China unveils plan on equipment renewal, trading2024-05-22 09:36
Weather forecasters warn Pakistanis to stay indoors ahead of new heat wave2024-05-22 09:28
Jazz singer set to invoke the sound of the steppes2024-05-22 09:16
German chancellor arrives in SW China2024-05-22 09:15
PICTURED: Best friends who died alongside student while 'doing high2024-05-22 09:05
Australia's deputy prime minister pledges support to Solomon Islands during visit to Honiara2024-05-22 08:57
Biden warns Netanyahu future US support for Israel depends on steps to protect civilians2024-05-22 08:34
Microsoft's AI chatbot will remember everything you do on a PC2024-05-22 09:29
Meet Donald Trump's glamorous right2024-05-22 09:28
China to strengthen capital market regulation, risk prevention2024-05-22 09:27
Masseur, 47, 'rapes British pensioner, 71, after massaging her' in Portugal2024-05-22 09:05
Bell's RBI single in 10th lifts Marlins to 32024-05-22 08:37
Belarus, Azerbaijan to strengthen bilateral cooperation2024-05-22 08:23
MPs are urged to finally pass the Rwanda bill after 535 migrants cross the Channel on Sunday2024-05-22 08:16
2 injured in restaurant blast in China's Jiangsu2024-05-22 08:08
Haiti’s international airport reopens after gang violence2024-05-22 07:49
North America witnesses total solar eclipse2024-05-22 07:46