Markhor-derived Introgression of a Genomic Region Encompassing PAPSS2 Confers High-altitude Adaptability in Tibetan Goats

© The Author(s) 2022. Published by Oxford University Press on behalf of Society for Molecular Biology and Evolution..

Understanding the genetic mechanism of how animals adapt to extreme conditions is fundamental to determine the relationship between molecular evolution and changing environments. Goat is one of the first domesticated species and has evolved rapidly to adapt to diverse environments, including harsh high-altitude conditions with low temperature and poor oxygen supply but strong ultraviolet radiation. Here, we analyzed 331 genomes of domestic goats and wild caprid species living at varying altitudes (high > 3000 m above sea level and low < 1200 m), along with a reference-guided chromosome-scale assembly (contig-N50: 90.4 Mb) of a female Tibetan goat genome based on PacBio HiFi long reads, to dissect the genetic determinants underlying their adaptation to harsh conditions on the Qinghai-Tibetan Plateau (QTP). Population genomic analyses combined with genome-wide association studies (GWAS) revealed a genomic region harboring the 3'-phosphoadenosine 5'-phosphosulfate synthase 2 (PAPSS2) gene showing strong association with high-altitude adaptability (PGWAS = 3.62 × 10-25) in Tibetan goats. Transcriptomic data from 13 tissues revealed that PAPSS2 was implicated in hypoxia-related pathways in Tibetan goats. We further verified potential functional role of PAPSS2 in response to hypoxia in PAPSS2-deficient cells. Introgression analyses suggested that the PAPSS2 haplotype conferring the high-altitude adaptability in Tibetan goats originated from a recent hybridization between goats and a wild caprid species, the markhor (Capra falconeri). In conclusion, our results uncover a hitherto unknown contribution of PAPSS2 to high-altitude adaptability in Tibetan goats on QTP, following interspecific introgression and natural selection.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:39

Enthalten in:

Molecular biology and evolution - 39(2022), 12 vom: 05. Dez.

Sprache:

Englisch

Beteiligte Personen:

Li, Chao [VerfasserIn]
Wu, Yujiang [VerfasserIn]
Chen, Bingchun [VerfasserIn]
Cai, Yudong [VerfasserIn]
Guo, Jiazhong [VerfasserIn]
Leonard, Alexander S [VerfasserIn]
Kalds, Peter [VerfasserIn]
Zhou, Shiwei [VerfasserIn]
Zhang, Jingchen [VerfasserIn]
Zhou, Ping [VerfasserIn]
Gan, Shangqu [VerfasserIn]
Jia, Ting [VerfasserIn]
Pu, Tianchun [VerfasserIn]
Suo, Langda [VerfasserIn]
Li, Yan [VerfasserIn]
Zhang, Ke [VerfasserIn]
Li, Lan [VerfasserIn]
Purevdorj, Myagmarsuren [VerfasserIn]
Wang, Xihong [VerfasserIn]
Li, Ming [VerfasserIn]
Wang, Yu [VerfasserIn]
Liu, Yao [VerfasserIn]
Huang, Shuhong [VerfasserIn]
Sonstegard, Tad [VerfasserIn]
Wang, Ming-Shan [VerfasserIn]
Kemp, Stephen [VerfasserIn]
Pausch, Hubert [VerfasserIn]
Chen, Yulin [VerfasserIn]
Han, Jian-Lin [VerfasserIn]
Jiang, Yu [VerfasserIn]
Wang, Xiaolong [VerfasserIn]

Links:

Volltext

Themen:

Environmental adaptation
Genetic introgression
Genomics
Goat
High altitude
Hypoxia
Journal Article
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 15.12.2022

Date Revised 06.01.2023

published: Print

Citation Status MEDLINE

doi:

10.1093/molbev/msac253

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM348957645