کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2778960 | 1153184 | 2009 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Segmental mismatch in crustacean appendages: The naupliar antennal exopod of Artemia (Crustacea, Branchiopoda, Anostraca)
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش حشره شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Segmental mismatch in crustacean appendages: The naupliar antennal exopod of Artemia (Crustacea, Branchiopoda, Anostraca) Segmental mismatch in crustacean appendages: The naupliar antennal exopod of Artemia (Crustacea, Branchiopoda, Anostraca)](/preview/png/2778960.png)
چکیده انگلیسی
Based on traditional techniques and confocal laser scanning microscopy for external morphology, and immunohistochemistry for the muscular system, we describe here the segmental features of the antennal exopod of Artemia nauplii. Two kinds of serial elements are present, i.e. setae (with cuticular folds at their base) and ringlets (serially arranged sclerites separated by joint-like cuticular folds not extending to form complete rings around the appendage). The two series are usually not in register. The cuticular folds of the setae and of the ringlets are also sites of intermediate insertions of the three exopod muscles: as the two tegumentary structures are discordant in periodicity, this is also mirrored in the pattern of muscle insertions on the two sides of the appendage. Similar cases of segmental mismatch are known for the trunk of several arthropods, but segmental mismatch along the appendages has received very little attention. The occurrence of segmental mismatch in the naupliar appendages of both extant and fossil crustaceans is reviewed and it is suggested here to be a primitive feature of the exopods of both second antennae and mandibles. Problems in the interpretation of morphological evidence are discussed, also in relation to development and evolution of segmentation of naupliar appendages.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Arthropod Structure & Development - Volume 38, Issue 2, March 2009, Pages 163-172
Journal: Arthropod Structure & Development - Volume 38, Issue 2, March 2009, Pages 163-172
نویسندگان
Diego Maruzzo, Alessandro Minelli, Giuseppe Fusco,