TY - JOUR
T1 - The Scaly-foot Snail genome and implications for the origins of biomineralised armour
AU - Sun, Jin
AU - Chen, Chong
AU - Miyamoto, Norio
AU - LI, Runsheng
AU - Sigwart, Julia D.
AU - Xu, Ting
AU - Sun, Yanan
AU - Wong, Wai Chuen
AU - Ip, Jack C.H.
AU - Zhang, Weipeng
AU - Lan, Yi
AU - Bissessur, Dass
AU - Watsuji, Tomo o.
AU - Watanabe, Hiromi Kayama
AU - Takaki, Yoshihiro
AU - Ikeo, Kazuho
AU - Fujii, Nobuyuki
AU - Yoshitake, Kazutoshi
AU - QIU, Jianwen
AU - Takai, Ken
AU - Qian, Pei Yuan
N1 - Funding Information:
This research was financially supported by the China Ocean Mineral Resource Research and Development Association (DY135-E2-1-03 to P.-Y.Q.), the Hong Kong Branch of South Marine Science and Engineering Guangdong Laboratory (SMSEGL20Sc01 to P.-Y.Q.), the Research Grants Council of Hong Kong (GRF grant No. 16101219 to J.S., C.C., and P.-Y.Q.), and a Japan Society for the Promotion of Science Grant-in-Aid for Scientific Research (18K06401 to C.C. and H.K.W.). Illumina sequencing was performed by Novogene (Beijing, China). Sampling in the Mauritian EEZ was approved by Ministry of Foreign Affairs, Regional Integration, and International Trade, Mauritian Government (Ref. 29/2014; 50/38/24 V2).
PY - 2020/12/1
Y1 - 2020/12/1
N2 - The Scaly-foot Snail, Chrysomallon squamiferum, presents a combination of biomineralised features, reminiscent of enigmatic early fossil taxa with complex shells and sclerites such as sachtids, but in a recently-diverged living species which even has iron-infused hard parts. Thus the Scaly-foot Snail is an ideal model to study the genomic mechanisms underlying the evolutionary diversification of biomineralised armour. Here, we present a high-quality whole-genome assembly and tissue-specific transcriptomic data, and show that scale and shell formation in the Scaly-foot Snail employ independent subsets of 25 highly-expressed transcription factors. Comparisons with other lophotrochozoan genomes imply that this biomineralisation toolkit is ancient, though expression patterns differ across major lineages. We suggest that the ability of lophotrochozoan lineages to generate a wide range of hard parts, exemplified by the remarkable morphological disparity in Mollusca, draws on a capacity for dynamic modification of the expression and positioning of toolkit elements across the genome.
AB - The Scaly-foot Snail, Chrysomallon squamiferum, presents a combination of biomineralised features, reminiscent of enigmatic early fossil taxa with complex shells and sclerites such as sachtids, but in a recently-diverged living species which even has iron-infused hard parts. Thus the Scaly-foot Snail is an ideal model to study the genomic mechanisms underlying the evolutionary diversification of biomineralised armour. Here, we present a high-quality whole-genome assembly and tissue-specific transcriptomic data, and show that scale and shell formation in the Scaly-foot Snail employ independent subsets of 25 highly-expressed transcription factors. Comparisons with other lophotrochozoan genomes imply that this biomineralisation toolkit is ancient, though expression patterns differ across major lineages. We suggest that the ability of lophotrochozoan lineages to generate a wide range of hard parts, exemplified by the remarkable morphological disparity in Mollusca, draws on a capacity for dynamic modification of the expression and positioning of toolkit elements across the genome.
UR - http://www.scopus.com/inward/record.url?scp=85083199362&partnerID=8YFLogxK
U2 - 10.1038/s41467-020-15522-3
DO - 10.1038/s41467-020-15522-3
M3 - Journal article
C2 - 32269225
AN - SCOPUS:85083199362
SN - 2041-1723
VL - 11
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 1657
ER -