Characterization of abdominal appendages in the sawfly, Athalia rosae (Hymenoptera), by morphological and gene expression analyses
スポンサーリンク
概要
- 論文の詳細を見る
Larvae of the sawfly, Athalia rosae, have remarkable abdominal prolegs. We analyzed the morphogenesis of appendages and the expression of decapentaplegic and Distal-less genes during embryonic development to characterize the origin of prolegs. Proleg primordia in abdominal segments A1–A9 appeared shortly after the inner lobes (endites) of gnathal appendages were formed. These were located on the ventral plates, medioventral to the appendages of the other segments in light of serial homology. Nothing was seen where the main axis of the appendage should develop in abdominal segments. The primordia in A1 and A9 disappeared before larval hatching. Anal prolegs appeared separate from cerci, the main axes of appendages, which were formed temporarily in A11. The expression of decapentaplegic, which reflects the primary determination of appendages, was detected in the lateral juxtaposition with the prolegs. Distal-less was expressed in the main axes of appendages, protruding endites and the cerci, but not in prolegs and anal prolegs or the gnathal endites which do not protrude. These findings suggest a possibility that the abdominal and anal prolegs of A. rosae are outgrowths of ventral plates which derived from coxopodal elements, but not main axes of appendages.
論文 | ランダム
- ボランティア意識--オーストラリアの調査から
- ガーナ女性の感性と服飾意識に関する研究 : 日本,カナダの若い女性との比較
- 女性の服飾意識と家族関係に関する研究--親子関係における日本とカナダの比較
- 1.家政学は帝国主義的侵略的であってよい(統一テーマ 30周年の歩みを振り返り、新たなる方向を探る,家政学原論部会員からの発言,1998年家政学原論部会30周年記念セミナー)
- バブル期前後における消費構造の分析--年齢階級別に見た生活の豊かさの変化 (平成10年度生活経済学会大会報告) -- (自由論題研究報告)