Signatures of divergence, invasiveness, and terrestrialization revealed by four apple snail genomes

Jin Sun, Huawei Mu, Jack C.H. Ip, Runsheng LI, Ting Xu, Alice Accorsi, Alejandro Sanchez Alvarado, Eric Ross, Yi Lan, Yanan Sun, Alfredo Castro-Vazquez, Israel A. Vega, Horacio Heras, Santiago Ituarte, Bert Van Bocxlaer, Kenneth A. Hayes, Robert H. Cowie, Zhongying ZHAO, Yu Zhang*, Pei Yuan QianJianwen QIU

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1507-1520
Number of pages14
JournalMolecular Biology and Evolution
Volume36
Issue number7
DOIs
Publication statusPublished - 1 Jul 2019

Scopus Subject Areas

  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics

User-Defined Keywords

  • Gastropod
  • Gene duplication
  • Genomics
  • Hox genes
  • Interchromosome rearrangement
  • Mollusc

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