کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1982832 1062321 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification and genomic structure of chemosensory proteins (CSP) and odorant binding proteins (OBP) genes expressed in foreleg tarsi of the swallowtail butterfly Papilio xuthus
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش حشره شناسی
پیش نمایش صفحه اول مقاله
Identification and genomic structure of chemosensory proteins (CSP) and odorant binding proteins (OBP) genes expressed in foreleg tarsi of the swallowtail butterfly Papilio xuthus
چکیده انگلیسی

Chemoreception is a key feature for selection of host plants by phytophagous insects. Female swallowtail butterflies recognize their host plants using chemosensilla present on foreleg tarsi. We constructed a cDNA library of female tarsi and a genome library of Papilio xuthus. We identified 11 chemosensory protein (CSP) genes and three odorant binding proteins (OBP) genes from the cDNA library and eight additional CSP genes from the genome library using the ESTs as probes. A sequence similarity tree of insect CSPs showed that lepidopteran CSPs constructed big branches of the order. Small numbers of CSPs have been identified from the whole genomes of several insect orders which belong to branches separated from those of Lepidoptera. The CSP gene family of Lepidoptera may have diverged in at least two steps, the first on a small scale and the second on a large scale before and after the diversification of insect orders, respectively. Seventeen of 19 CSP genes of P. xuthus clustered in a specific region of the genome, suggesting that they were diversified by gene duplication from a common ancestral gene.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Insect Biochemistry and Molecular Biology - Volume 38, Issue 11, November 2008, Pages 969–976
نویسندگان
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