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Neural remodelling in spiny lobster larvae is characterized by broad neuropeptide suppression.

Abstract：

:Neuropeptides are ancient endocrine components which have evolved to regulate many aspects of biology across the animal kingdom including behaviour, development and metabolism. To supplement current knowledge, we have utilized a transcriptome series describing larval development in the ornate spiny lobster, Panulirus ornatus. The biology of this animal has been leveraged to provide insights into the roles of molting, metamorphosis and metabolism across the neuropeptide family. We report an extensive list of neuropeptides across three distinct life phases of the animal. We show distinct groups of neuropeptides with differential expression between larval phases, indicating phase-specific roles for these peptides. For selected neuropeptides, we describe and discuss expression profiles throughout larval development and report predicted peptide cleavage sites and mature peptide sequences. We also report the neuropeptide nesfatin for the first time in a crustacean, and report secondary peptide products with a level of evolutionary conservation similar to the conventional mature peptide nesfatin-1, indicating a conserved role in these secondary products which are widely regarded as biologically inactive. In addition, we report a trend of downregulation in the neuropeptides as the animal undergoes extensive neural remodelling in fulfillment of metamorphosis. We suggest that this downregulation in neuropeptides relates to the brief, yet dramatic changes in morphology experienced by the central nervous system in the process of metamorphosis.

journal_name

Gen Comp Endocrinol

journal_title

General and comparative endocrinology

authors

Hyde CJ,Nguyen T,Fitzgibbon QP,Elizur A,Smith GG,Ventura T

doi

10.1016/j.ygcen.2020.113496

subject

Has Abstract

pub_date

2020-08-01 00:00:00

pages

113496

eissn

0016-6480

issn

1095-6840

pii

S0016-6480(20)30076-9

journal_volume

294

pub_type

杂志文章

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