Global patterns of genomic and phenotypic variation in the invasive harlequin ladybird

BMC Biology

Research Article

Gábor L. Lövei¹  Khyati Kansagra²  Bryce Summerhays²  Ryan Cartmill²  Christy Grenier²  Nicolette Gonzalez²  Hannah Vansant²  Arun Sethuraman³  Yumary Vasquez⁴  Xiaohan Shu⁵  Baoping Li⁵  Ling Meng⁵  Yansong Wang⁵  Hongran Li⁶  Xuguo Zhou⁷  John J. Obrycki⁷  Edison Ryoiti Sujii⁸  Yan Peng⁹ 

[1] Department of Agroecology, Flakkebjerg Research Centre, Aarhus University, Aarhus, Denmark;ELKH-DE Anthropocene Ecology Research Group, University of Debrecen, Debrecen, Hungary;Department of Zoology & Ecology, Hungarian University of Agriculture & Life Sciences, Godollo, Hungary;Department of Biological Sciences, California State University, San Marcos, CA, USA;Department of Biological Sciences, California State University, San Marcos, CA, USA;Department of Biology, San Diego State University, San Diego, CA, USA;Department of Biological Sciences, California State University, San Marcos, CA, USA;Department of Life and Environmental Sciences, University of California, Merced, CA, USA;Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing, People’s Republic of China;Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing, People’s Republic of China;Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, People’s Republic of China;Department of Entomology, University of Kentucky, Lexington, KY, USA;Empresa Brasileira de Pesquisa Agropecuária (Embrapa), Brasilia, DF, Brazil;Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, People’s Republic of China;

关键词: Invasion biology;    mtCOI;    Evolutionary history;    Adaptation;    Life history;    Population genomics;   

DOI  :  10.1186/s12915-023-01638-7

 received in 2022-07-05, accepted in 2023-05-30,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundThe harlequin ladybird Harmonia axyridis (Coleoptera: Coccinellidae), native to Asia, has been introduced to other major continents where it has caused serious negative impacts on local biodiversity. Though notable advances to understand its invasion success have been made during the past decade, especially with then newer molecular tools, the conclusions reached remain to be confirmed with more advanced genomic analyses and especially using more samples from larger geographical regions across the native range. Furthermore, although H. axyridis is one of the best studied invasive insect species with respect to life history traits (often comparing invasive and native populations), the traits responsible for its colonization success in non-native areas warrant more research.ResultsOur analyses of genome-wide nuclear population structure indicated that an eastern Chinese population could be the source of all non-native populations and revealed several putatively adaptive candidate genomic loci involved in body color variation, visual perception, and hemolymph synthesis. Our estimates of evolutionary history indicate (1) asymmetric migration with varying population sizes across its native and non-native range, (2) a recent admixture between eastern Chinese and American populations in Europe, (3) signatures of a large progressive, historical bottleneck in the common ancestors of both populations and smaller effective sizes of the non-native population, and (4) the southwest origin and subsequent dispersal routes within its native range in China. In addition, we found that while two mitochondrial haplotypes-Hap1 and Hap2 were dominant in the native range, Hap1 was the only dominant haplotype in the non-native range. Our laboratory observations in both China and USA found statistical yet slight differences between Hap1 and Hap2 in some of life history traits.ConclusionsOur study on H. axyridis provides new insights into its invasion processes into other major continents from its native Asian range, reconstructs a geographic range evolution across its native region China, and tentatively suggests that its invasiveness may differ between mitochondrial haplotypes.

【 授权许可】

CC BY   
© The Author(s) 2023

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