{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T02:36:07Z","timestamp":1784082967418,"version":"3.55.0"},"reference-count":60,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2022,4,29]],"date-time":"2022-04-29T00:00:00Z","timestamp":1651190400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Exp Zool Pt B"],"published-print":{"date-parts":[[2022,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Body organization within arthropods is enormously diverse, but a fusion of segments into \u201cfunctional groups\u201d (tagmatization) is found in all species. Within Tetraconata\/Pancrustacea, an anterior head, a locomotory thorax region, and a posterior, mostly limbless tagma known as the abdomen is present. The posterior\u2010most tagma in crustaceans is frequently confused with the malacostracan, for example,\u00a0decapod pleon often misleadingly termed abdomen, however, its evolutionary and developmental origin continues to pose a riddle, especially the completely limbless abdomen of the \u201centomostracan morphotype\u201d (e.g., fairy shrimps). Since the discovery of Hox genes and their involvement in specifying the morphology or identity of segments, tagmata, or regions along the anteroposterior axis of an organism, only a few studies have focused on model organisms representing the \u201centomostracan morphotype\u201d and used a variety of dedicated Hox genes and their transcription products to shine light on abdomen formation. The homeotic genes or the molecular processes that determine the identity of the entomostracan abdomen remain unknown to date.\u00a0This study focuses on the \u201centomostracan morphotype\u201d representative\n                    <jats:italic>Derocheilocaris remanei<\/jats:italic>\n                    (Mystacocarida). We present a complete overview of development throughout larval stages and investigate homeotic gene expression data using the antibody FP6.87 that binds specifically to epitopes of\n                    <jats:italic>Ultrabithorax<\/jats:italic>\n                    \/\n                    <jats:italic>Abdominal\u2010A<\/jats:italic>\n                    proteins.\u00a0Our results suggest that the abdomen in Mystacocarida is bipartite (\n                    <jats:italic>\n                      <jats:bold>abdomen I<\/jats:bold>\n                    <\/jats:italic>\n                    \u2009+\u2009\n                    <jats:italic>\n                      <jats:bold>abdomen II<\/jats:bold>\n                    <\/jats:italic>\n                    ). We suggest that the limbless abdomen is an evolutionary novelty that evolved several times independently within crustaceans and which might be the result of a progressive reduction of former thoracic segments into abdominal segments.\n                  <\/jats:p>","DOI":"10.1002\/jez.b.23140","type":"journal-article","created":{"date-parts":[[2022,4,29]],"date-time":"2022-04-29T09:56:49Z","timestamp":1651226209000},"page":"342-359","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["How body patterning might have worked in the evolution of arthropods\u2014A\u00a0case study of the mystacocarid\n                    <i>Derocheilocaris remanei<\/i>\n                    (Crustacea, Oligostraca)"],"prefix":"10.1002","volume":"338","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2418-2681","authenticated-orcid":false,"given":"Martin","family":"Fritsch","sequence":"first","affiliation":[{"name":"Museum f\u00fcr Naturkunde, Leibniz\u2010Institut f\u00fcr Evolutions\u2010und Biodiversit\u00e4tsforschung Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan","family":"Richter","sequence":"additional","affiliation":[{"name":"Allgemeine und Spezielle Zoologie, Institut f\u00fcr Biowissenschaften Universit\u00e4t Rostock Rostock Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,4,29]]},"reference":[{"key":"e_1_2_8_2_1","first-page":"43","volume-title":"Hox genes and tagmatization of higher Crustacea (Malacostraca): Evolutionary developmental biology of Crustacea","author":"Abzhanov A.","year":"2004"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1242\/dev.126.6.1121"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.96.18.10224"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1242\/dev.104.Supplement.123"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1038\/376420a0"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1038\/41786"},{"issue":"1971","key":"e_1_2_8_8_1","first-page":"589","article-title":"Etude du syst\u00e9me nerveux de Derocheilocaris remanei Delamare et Chappuis 1951 (Crustacea, Mystacocarida)","volume":"15","author":"Baccari S.","year":"1974","journal-title":"Cahiers de Biologie Marine"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00427-003-0294-z"},{"key":"e_1_2_8_10_1","doi-asserted-by":"crossref","first-page":"241","DOI":"10.1007\/978-3-642-36160-9_11","volume-title":"Arthropod limbs and their development: Arthropod biology and evolution","author":"Boxshall G.","year":"2013"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmor.10789"},{"issue":"32","key":"e_1_2_8_12_1","first-page":"1","article-title":"Embryonic neurogenesis in Pseudopallene sp. 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