A draft genome assembly of the solar-powered sea slug Elysia chlorotica

Huimin Cai, Qiye Li, Xiaodong Fang, Ji Li, Nicholas E. Curtis, Andreas Altenburger, Tomoko Shibata, Mingji Feng, Taro Maeda, Julie A. Schwartz, Shuji Shigenobu, Nina Lundholm, Tomoaki Nishiyama, Huanming Yang, Mitsuyasu Hasebe, Shuaicheng Li*, Sidney K. Pierce*, Jian Wang*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

39 Citations (Scopus)
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Abstract

Elysia chlorotica, a sacoglossan sea slug found off the East Coast of the United States, is well-known for its ability to sequester chloroplasts from its algal prey and survive by photosynthesis for up to 12 months in the absence of food supply. Here we present a draft genome assembly of E. chlorotica that was generated using a hybrid assembly strategy with Illumina short reads and PacBio long reads. The genome assembly comprised 9,989 scaffolds, with a total length of 557 Mb and a scaffold N50 of 442 kb. BUSCO assessment indicated that 93.3% of the expected metazoan genes were completely present in the genome assembly. Annotation of the E. chlorotica genome assembly identified 176 Mb (32.6%) of repetitive sequences and a total of 24,980 protein-coding genes. We anticipate that the annotated draft genome assembly of the E. chlorotica sea slug will promote the investigation of sacoglossan genetics, evolution, and particularly, the genetic signatures accounting for the long-term functioning of algal chloroplasts in an animal.
Original languageEnglish
Article number190022
JournalScientific data
Volume6
Online published19 Feb 2019
DOIs
Publication statusPublished - 2019

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  • This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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