Identification and characterization of olfactory receptor genes and olfactory perception in rapa whelk Rapana venosa (Valenciennes, 1846) during larval settlement and metamorphosis
- Yu, Zheng-Lin
- Feng, Jie
- Song, Hao
- Yang, Mei-Jie
- Hu, Zhi
- Zhou, Cong
- Shi, Pu
- Yuan, Xiu-Tang
- Li, Hai-Zhou
- Zhang, Tao
- Liu, Lei
DOIAbstract
The rapa whelk Rapana venosa, an economically important marine fishery resource in China but a major invader all over the world, changes from a phytophagous to a carnivorous form following settlement and metamorphosis. However, the low settlement and metamorphosis rates (<1%) of larvae limit the abundance of R. venosa. This critical step (settlement and metamorphosis) remains poorly characterized but may be related to how larvae perceive the presence of shellfish, their new source of food. Here, we report that larvae may use olfactory perception to sense shellfish. Olfactory receptor (OR) genes are involved in odor sensing in animals. We identified a total of 463 OR genes, which could be grouped into nine clades based on phylogenetic analys...
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