Signatures of Divergence, Invasiveness, and Terrestrialization Revealed by Four Apple Snail Genomes. (12th April 2019)

• Record Type: Journal Article
• Authors: Sun, Jin; Mu, Huawei; Ip, Jack C H; Li, Runsheng; Xu, Ting; Accorsi, Alice; Sánchez Alvarado, Alejandro; Ross, Eric; Lan, Yi; Sun, Yanan; Castro-Vazquez, Alfredo; Vega, Israel A; Heras, Horacio; Ituarte, Santiago; Van Bocxlaer, Bert; Hayes, Kenneth A; Cowie, Robert H; Zhao, Zhongying; Zhang, Yu; Qian, Pei-Yuan; Qiu, Jian-Wen
• Editors: Russo, Claudia
• Is Part Of: Molecular biology and evolution. Volume 36:Number 7(2019)
• Page Start: 1507
• Page End: 1520
• Publication Date: 2019-04-12
• Subjects: mollusc -- gastropod -- genomics -- Hox genes -- interchromosome rearrangement -- gene duplication; Molecular biology -- Periodicals; Molecular evolution -- Periodicals; Evolution, Molecular -- Periodicals; Molecular Biology -- Periodicals; 572.8
• DOI: 10.1093/molbev/msz084
• Languages: English
• ISSNs: 0737-4038

Abstract

Abstract: The family Ampullariidae includes both aquatic and amphibious apple snails. They are an emerging model for evolutionary studies due to the high diversity, ancient history, and wide geographical distribution. Insight into drivers of ampullariid evolution is hampered, however, by the lack of genomic resources. Here, we report the genomes of four ampullariids spanning the Old World ( Lanistes nyassanus ) and New World ( Pomacea canaliculata, P. maculata, and Marisa cornuarietis ) clades. The ampullariid genomes have conserved ancient bilaterial karyotype features and a novel Hox gene cluster rearrangement, making them valuable in comparative genomic studies. They have expanded gene families related to environmental sensing and cellulose digestion, which may have facilitated some ampullarids to become notorious invasive pests. In the amphibious Pomacea, novel acquisition of an egg neurotoxin and a protein for making the calcareous eggshell may have been key adaptations enabling their transition from underwater to terrestrial egg deposition.