کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9104161 | 1153200 | 2005 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Building the central complex of the grasshopper Schistocerca gregaria: temporal topology organizes the neuroarchitecture of the w, x, y, z tracts
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کلمات کلیدی
NGSCentral bodyFCSTritocerebrumGARNeuroarchitecture5-bromodeoxyuridineLabrumGAMMesectodermHRPCOCMECMIDFITCmAbNADPHdCOMPBSDABdeutocerebrummedialantenna - آنتنMonoclonal antibody - آنتی بادی مونوکلونالStomodeum - استومودومellipsoid body - بدن بیضویBrdU - بروموداکسی اوریدینgoat anti-rabbit - بز خرگوش بزlateral - جانبیEmbryo - جنینInsect - حشرهMidline - خط مقدمdiaminobenzidine - دیامینو بنزیدینDevelopment - رشدnormal goat serum - سرم طبیعی بزfetal calf serum - سرم گوساله جنینgoat anti-mouse - ضد موش بزdorsal - عقبPosterior - عقبPharynx - فریونکسfluorescein isothiocyanate - فلوئورسین ایسوتیوسیاناتmandible - فَکّ پایین، زیرواره یا مندیبولanterior - قدامیAntennal lobe - لوب آنتنالOptic lobe - لوب نوریlucifer yellow - لوسیفر زردcentral complex - مجتمع مرکزیLoc - محلPhosphate-buffered saline - محلول نمک فسفات با خاصیت بافریMidbrain - میانمغز، مزانسفالventral - ونتیلاتورHorseradish peroxidase - پراکسیداز هوررادیشProtocerebrum - پروتکل بیضهCommissure - کمربندFrontal ganglion - گانگلیون پیشانی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش حشره شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The central complex is a brain specific structure involved in multimodal information processing and in coordinating motor behaviour. It possesses a highly organized neuroarchitecture, which is remarkably conserved across insect species. A prominent feature of this neuroarchitecture is the stereotypic projection of axons from clusters of neurons in the pars intercerebralis to the central body via the so-called w, x, y and z tracts. Despite extensive analyses of this neuroarchitecture in adults, little is known about its ontogeny in any insect. In this paper we use the expression pattern of the segment polarity gene engrailed to identify those neuroblasts belonging to the protocerebrum of the early embryonic brain of the grasshopper Schistocerca gregaria. We present a new map for this brain region in which the 95 protocerebral neuroblasts in each hemisphere are organized into seven rows, as they are in the neuromeres of the ventral nerve cord. We then identify a subset of four of these neuroblasts as being the progenitor cells for four clusters of neurons, some of whose axons we show project via discrete tracts (w, x, y, z) into the central complex. These tracts begin to form prior to 39% of embryogenesis. We show further, that the cells from one of these clusters (the Z cluster) are organized according to age, and direct axons topologically according to age into the appropriate z tract. This pattern is repeated in each of the other three clusters, thus establishing a clonally based modular system of fibre tracts consistent with the model proposed for this brain region in the adult.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Arthropod Structure & Development - Volume 34, Issue 1, January 2005, Pages 97-110
Journal: Arthropod Structure & Development - Volume 34, Issue 1, January 2005, Pages 97-110
نویسندگان
J.L.D. Williams, M. Güntner, G.S. Boyan,