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A single-cell transcriptomic atlas characterizes the silk-producing organ in the silkworm
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A single-cell transcriptomic atlas characterizes the silk-producing organ in the silkworm
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Journal Article
A single-cell transcriptomic atlas characterizes the silk-producing organ in the silkworm
2022
Overview
The silk gland of the domesticated silkworm
Bombyx mori
, is a remarkable organ that produces vast amounts of silk with exceptional properties. Little is known about which silk gland cells execute silk protein synthesis and its precise spatiotemporal control. Here, we use single-cell RNA sequencing to build a comprehensive cell atlas of the silkworm silk gland, consisting of 14,972 high-quality cells representing 10 distinct cell types, in three early developmental stages. We annotate all 10 cell types and determine their distributions in each region of the silk gland. Additionally, we decode the developmental trajectory and gene expression status of silk gland cells. Finally, we discover marker genes involved in the regulation of silk gland development and silk protein synthesis. Altogether, this work reveals the heterogeneity of silkworm silk gland cells and their gene expression dynamics, affording a deeper understanding of silk-producing organs at the single-cell level.
The molecular underpinning of silk-producing organs is not well characterized. Here the authors use single-cell RNA sequencing to build an atlas of the silkworm silk gland and reveal the heterogeneity of silk gland cells.
