Identification and expression profiling of the bone morphogenetic protein gene family based on pearl culture in mantle and visceral mass of .

Bone morphogenetic proteins (BMPs) play an important biological role in pearl biomineralization in pearl mussels. In this study, based on the genome data of the triangular sail mussel (), the genome-wide identification and bioinformatic analysis of BMP gene family were performed, and the expression pattern of the BMP genes was investigated by the insertion experiments. The results showed that a total of 12 BMP gene family members (, , , , , and ) were identified, which were unevenly distributed on chromosome 3/14/18, encoding 169-583 amino acids, with molecular weights ranging from 19.

Correction: Li et al. Identification and Functional Analysis of the Cell Proliferation Regulator, Insulin-like Growth Factor 1 (IGF1) in Freshwater Pearl Mussel (). 2022, , 1369.

In the original publication [...

Identification and Functional Analysis of the Cell Proliferation Regulator, Insulin-like Growth Factor 1 (IGF1) in Freshwater Pearl Mussel ().

Insulin-like growth factor 1 (IGF1) plays an important regulatory role in the regulation of growth, differentiation, and anabolism in a variety of cells. In this study, the full-length cDNA of the IGF1 gene was cloned from Hyriopsis cumingii, named HcIGF1. The expression level of HcIGF1 in six tissues (adductor muscle, foot, hepatopancreas, gill, mantle, and gonad) was determined.

A proteomic approach reveals biomineralization and immune response for mantle to pearl sac in the freshwater pearl mussel (Hyriopsis cumingii).

In the process of production of freshwater pearl, implanted mantle pieces undergo a series of complex physiological and biochemical processes to form pearl sac, which produce pearl. This is a very important site of occurrence due to immune-induced biomineralization, while its molecular regulatory mechanism is still unclear. Here, we use proteomics to identify differentially expressed proteins (DEPs) of the mantle and pearl sac and examine the biomineralization and immune response of the pearl sac formation process in Hyriopsis cumingii.

Integrative cytological analysis of the effects of Ca and vitamin D on extracellular Ca flux and intracellular Ca reserves in the mantle of the pearl oyster (Hyriopsis cumingii Lea).

To examine Ca absorption and transportation in the freshwater pearl oyster, Hyriopsis cumingii Lea, we studied the effects of different levels of either extracellular Ca or 1,25(OH)D on extracellular Ca flux and intracellular Ca concentrations in mantle cells using the non-invasive micro-test technique and laser scanning confocal microscopy. The inner and outer mantle (IM and OM) cells from mussels were cultured and then treated with different concentrations of Ca and 1,25(OH)D Extracellular Ca flux and intracellular Ca reserves were analyzed. The results showed that both extracellular Ca and 1,25(OH)D had significant effects on Ca flux and reserves in mantle cells, especially in IM cells (P < .