کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2173165 1093698 2012 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Three-dimensional anatomy of the Ciona intestinalis tailbud embryo at single-cell resolution
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
Three-dimensional anatomy of the Ciona intestinalis tailbud embryo at single-cell resolution
چکیده انگلیسی

During embryogenesis, chordates pass through a tailbud stage in which the larval tail is formed. Since acquisition of a tadpole-like tail during tailbud stage is one of the key events in the evolution of chordates, understanding the anatomy of the tailbud stage chordate embryo is of special interest. In this study, to understand comprehensively the anatomy of the tailbud embryo at single-cell-level, real microscopic image stacks of the tailbud embryo in Ciona intestinalis were reconstructed into a 3D computer model. This comprehensive 3D model of the ascidian tailbud embryo was based on real images of confocal laser scanning microscope (CLSM) and therefore, cell shape, location and cell arrangement reflect real geometries of the tailbud embryo. We found that the tailbud embryo consists of 1579 cells, including 836 epidermal cells, 228 cells in the central nervous system, 218 mesenchymal cells, four trunk ventral cells, two B/B⁎8.11 cells, 36 muscle cells, 40 notochord cells, four primordial germ cells, and 199 endodermal cells. Moreover, we identified for the first time two populations of previously undefined cells (a total of 12 cells) in Ciona: one located in the lateral trunk and the other located under the tail dorsal epidermis. This information provides a first step for understanding how the body plan of the chordate tailbud embryo formed and evolved.

Figure optionsDownload high-quality image (478 K)Download as PowerPoint slideHighlights
► We made 3D mid-tailbud embryo model based on high-resolution confocal image.
► This is a first report of single-cell-level 3D anatomy of chordate tailbud embryo.
► It was found that the mid-tailbud embryo consisted of 1579 cells.
► Two unidentified cell populations were identified in mid-tailbud stage embryo.
► 3D model, cell-lineage and anatomical ontology are embedded to a 3D PDF file.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Developmental Biology - Volume 372, Issue 2, 15 December 2012, Pages 274–284
نویسندگان
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