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Genomic exploration of the endangered oriental stork, Ciconia boyciana, sheds light on migration adaptation and future conservation

文献类型: 外文期刊

作者: Yang, Shangchen 1 ; Liu, Yan 3 ; Zhao, Xiaoqing 4 ; Chen, Jin 1 ; Li, Haimeng 1 ; Liang, Hongrui 3 ; Fan, Jiale 1 ; Zhou, Mengchao 1 ; Wang, Shiqing 1 ; Zhang, Xiaotian 3 ; Shi, Minhui 1 ; Han, Lei 1 ; Yu, Mingyuan 3 ; Lu, Yaxian 1 ; Liu, Boyang 1 ; Xu, Yu 3 ; Lan, Tianming 1 ; Hou, Zhijun 1 ;

作者机构: 1.Northeast Forestry Univ, Coll Wildlife & Protected Area, 26 He Xing Rd, Harbin 150040, Peoples R China

2.Zhejiang Univ, Coll Life Sci, Hangzhou 310058, Peoples R China

3.Natl Forestry & Grassland Adm, Ctr Biol Disaster Prevent & Control, Shenyang 110034, Peoples R China

4.Inner Mongolia Acad Agr & Anim Husb Sci, Hohhot 010031, Peoples R China

5.Minist Agr & Rural Affairs, Key Lab Black Soil Protect & Utilizat Hohhot, Hohhot 010031, Peoples R China

6.Heilongjiang Key Lab Complex Traits & Prot Machine, Harbin 150040, Peoples R China

关键词: oriental stork; comparative genomics; conservation genomics; endangered species; migration

期刊名称:GIGASCIENCE ( 影响因子:3.9; 五年影响因子:11.1 )

ISSN: 2047-217X

年卷期: 2024 年 13 卷

页码:

收录情况: SCI

摘要: Background The oriental stork, Ciconia boyciana, is an endangered migratory bird listed on the International Union for Conservation of Nature's Red List. The bird population has experienced a rapid decline in the past decades, with nest locations and stop-over sites largely degraded due to human-bird conflicts. Multipronged conservation efforts are required to secure the future of oriental storks. We propose that a thorough understanding of the genome-wide genetic background of this threatened bird species is critical to make future conservation strategies.Findings In this study, the first chromosome-scale reference genome was presented for the oriental stork with high quality, contiguity, and accuracy. The assembled genome size was 1.24 Gb with a scaffold N50 of 103 Mb, and 1.23 Gb contigs (99.32%) were anchored to 35 chromosomes. Population genomic analysis did not show a genetic structure in the wild population. Genome-wide genetic diversity (pi = 0.0012) of the oriental stork was at a moderate to high level among threatened bird species, and the inbreeding risk was also not significant (FROH = 5.56% +/- 5.30%). Reconstruction of demographic history indicated a rapid recent population decline likely driven by human activities. Genes that were under positive selection associated with the migratory trait were identified in relation to the long-term potentiation, photoreceptor cell organization, circadian rhythm, muscle development, and energy metabolism, indicating the essential interplay between genetic and ecological adaptation.Conclusions Our study presents the first chromosome-scale genome assembly of the oriental stork and provides a genomic basis for understanding a genetic background of the oriental stork, the population's extinction risks, and the migratory characteristics, which will facilitate the decision of future conservation plans for this species.

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