{"id":28222,"date":"2010-07-04T19:00:00","date_gmt":"2010-07-04T17:00:00","guid":{"rendered":"https:\/\/www.embl.org\/news\/?p=28222"},"modified":"2024-11-14T16:31:26","modified_gmt":"2024-11-14T15:31:26","slug":"digital-embryo-gains-wings","status":"publish","type":"post","link":"https:\/\/www.embl.org\/news\/science\/digital-embryo-gains-wings\/","title":{"rendered":"Digital Embryo gains wings"},"content":{"rendered":"\n
\"\"<\/a>
The Fly Digital Embryo at different developmental stages, with cell nuclei coloured according to how fast they were moving (from blue for the slowest to orange for the fastest). The fruit fly embryo is magnified around 250 times. IMAGE: Philipp Keller<\/figcaption><\/figure><\/div>\n\n\n\n

The scientists at the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany, who \u2018fathered\u2019 the Digital Embryo have now given it wings, creating the Fly Digital Embryo. In work published today in Nature Methods<\/em>, they were able to capture fruit fly development on film, and were the first to clearly record how a zebrafish\u2019s eyes and midbrain are formed. The improved technique will also help to shed light on processes and organisms, which have so far been under-studied because they could not be followed under a microscope.<\/p>\n\n\n\n

\u201cNon-transparent samples like the fruit fly embryo scatter light, so the microscope picks up a mixture of in-focus and out-of-focus signal\u2013 good and bad information, if you like,\u201d says Ernst Stelzer, whose group carried out the project at EMBL. \u201cOur new technique enables us to discriminate between that good and bad information, so it allows us to record organisms which have so far been poorly studied, because of their unfortunate optical properties.\u201d<\/p>\n\n\n\n

\"\"
The new microscopy technique provides a much clearer image of a fruit fly embryo (right) than the previous one (left). IMAGE: Philipp Keller<\/figcaption><\/figure><\/div>\n\n\n\n

Philipp Keller, who co-led and conducted the work, and Ernst Stelzer overcame the difficulties caused by thick, opaque samples, by shining patterns of light on them, instead of the usual continuous light sheet. This generates an image with alternating light and dark stripes, unless the light bounces off the sample and changes direction, in which case this stripy pattern will be blurred. By taking multiple images of different phases of the light pattern, and combining them, a computer can filter out the effects of scattered light and generate an accurate image of the sample, thus enabling scientists to record images that were previously unobtainable.By combining this approach with imaging along different angles, the scientists were able to obtain three-dimensional movies of the developing fruit fly embryo in spite of the fact that it is almost opaque.<\/p>\n\n\n\n

The EMBL scientists were also able to extend their recordings of zebrafish development to an unprecedented level. They took around one million images to capture the first three days of zebrafish development from three different angles, generating films in which the formation of the animal\u2019s eyes and midbrain are clearly visible.<\/p>\n\n\n\n

\"\"<\/a>
Movie 2:<\/strong> The Fly Digital Embryo, with cells colour-coded according to the view from which they were recorded. Click on the image to play.<\/figcaption><\/figure><\/div>\n\n\n\n

\u201cOf course, getting such good images is nice for the human observer, but it\u2019s particularly crucial for computational analyses, like tracking cell movements and divisions as we do in the Digital Embryo,\u201d says Philipp Keller, now at the Janelia Farm Research Campus of the Howard Hughes Medical Institute in Ashburn, VA, USA.<\/p>\n\n\n\n

The work was done in collaboration with scientists at the University of Heidelberg, Germany and the Sloan-Kettering Institute in New York, USA.<\/p>\n\n\n\n

All data, images and videos are freely available online, alongside the data from the digital embryo, at www.digital-embryo.org<\/a>.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n

\n
\n
\n
\n\n
\"The<\/a>
The Fly Digital Embryo seen from 2 different angles (left and centre), and rotating through all views (right). Click on the image to play. IMAGE: Philipp Keller<\/figcaption><\/figure>\n\n<\/div>\n<\/div>\n\n\n
\n
\n\n
\"A<\/a>
A zebrafish embryo’s midbrain developing (centre), with the eyes forming on either side of it. Click on the image to play. IMAGE: Philipp Keller<\/figcaption><\/figure>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

For more information about the first Digital Embryo, click here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

The scientists at the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany, who \u2018fathered\u2019 the Digital Embryo have now given it wings, creating the Fly Digital Embryo. In work published today in Nature Methods, they were able to capture fruit fly development on film, and were the…<\/p>\n","protected":false},"author":16,"featured_media":28240,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2,17591],"tags":[595,873,927,1012,833,1748,931],"embl_taxonomy":[5138,9796],"class_list":["post-28222","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science","category-science-technology","tag-brain","tag-embryogenesis","tag-eye","tag-fluorescence-microscopy","tag-fruit-fly","tag-press-release","tag-zebrafish","embl_taxonomy-cell-biology-and-biophysics","embl_taxonomy-embl-heidelberg"],"acf":{"show_featured_image":true,"vf_locked":false,"featured":false,"article_intro":"

Now possible to film development of fruit fly and of zebrafish\u2019s eyes and brain<\/p>\n","article_sources":[{"source_description":"

Keller, P.J., Schmidt, A. D., Santella, A., Khairy, K., Bao, Z., Wittbrodt, J., Stelzer, E.H.K. Fast high-contrast imaging of animal development with scanned light sheet-based structured illumination microscopy. Nature Methods<\/em>, 4 July 2010. DOI:10.1038\/nmeth.1476 <\/p>\n","source_link_url":"https:\/\/www.nature.com\/articles\/nmeth.1476"}],"related_links":false,"in_this_article":false,"color":"#007B53","youtube_url":"","mp4_url":"","video_caption":"","press_contact":"EMBL Generic","field_target_display":"embl","source_article":false},"embl_taxonomy_terms":[{"uuid":"a:3:{i:0;s:36:\"302cfdf7-365b-462a-be65-82c7b783ebf7\";i:1;s:36:\"7ca3ce91-dc32-47ea-8d4b-7a53c3a3a9fd\";i:2;s:36:\"64999cc4-9a7c-4fea-8339-0e2acc990e08\";}","parents":[],"name":["Cell biology and biophysics"],"slug":"cell-biology-and-biophysics","description":"What > Research Units > Cell biology and biophysics"},{"uuid":"a:3:{i:0;s:36:\"b14d3f13-5670-44fb-8970-e54dfd9c921a\";i:1;s:36:\"89e00fee-87f4-482e-a801-4c3548bb6a58\";i:2;s:36:\"ab46b6d4-71d8-49f8-b2f4-b326d4c8ea4e\";}","parents":[],"name":["EMBL Heidelberg"],"slug":"embl-heidelberg","description":"Where > All EMBL sites > EMBL Heidelberg"}],"yoast_head":"\nDigital Embryo gains wings | 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