Judul: Karakteristik Gen Cytochrome Oxidase Subunit I (COI) pada Kerang Bulu (Anadara antiquata Linn.) asal Perairan Panimbang dan Bojonegara, Provinsi Banten
Abstrak: Anadara antiquata is an intertidal bivalve belongs to Arcidae Family. Its distribution in Indonesia is widespread. Its play role both in economy and ecology. Based on genetic database from GenBank, there is no genome data of A. antiquata from Indonesia. Therefore, to accomplish information on this hairy cockle, this research was aimed at characterizing cytochrome oxidase subunit I (COI) in cockle (Anadara antiquata linn.) from Banten (Panimbang and Bojonegara). Hairy cockle samples were collected from Panimbang and Bojonegara. Those were extracted for DNA analysis. DNA extraction and amplification process were followed with DNA sequencing of COI gene that produced 607 nucleotides (nt). The product was analyzed using software MEGA 4.0 and aligned with some sequences from GenBank database. This study was able to characterize A. antiquata COI gene which product was 382 nt using alignment method of Clustal W.
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Judul: Karakteristik Gen Cytochrome Oxidase Subunit I (COI) pada Kijing Anodonta woodiana (Lea, 1834)
Abstrak: Anodonta woodiana is one of freshwater mussel which have been widely cultivated for its ability to produce pearls. A. woodiana has the ability to produce nacre and prismatic crystal that produce pearls. This ability is closely related to genetic information in this species. The aim of this study was to examine the characteristic of cytochrome oxidase subunit I (COI) gene in freshwater mussel A. woodiana from West Java Province. Genomic DNA was extracted from tissue of A. woodiana from Bogor and Depok. Extracted DNA continued by amplification and sequencing of COI gene. COI gene was aligned with some COI genes from other species, ingroup (familiy Unionidae) and outgroup obtained from GenBank. Amplified of COI gene were successfully yielded in 608 bp. This study was not able to characterize COI gene of A. woodiana well because there are inhibitors. Nucleotid along 608 bp can not be used as a barcode. Phylogenetic analysis of A. woodiana showed that A. woodiana is separated from other family Unionidae.
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Judul: Kajian frieze groups untuk klasifikasi dan konstruksi desain berdasarkan simetri pada pola
Abstrak: Frieze groups adalah konsep matematika untuk mengklasifikasikan desain pada dua dimensi permukaan yang berulang-ulang dalam satu arah berdasarkan simetri pada pola. Frieze groups merupakan grup yang mempertahankan bentuk pola. Pergerakan bentuk pola terdiri dari translasi, refleksi dan rotasi 180o. Tujuan dari karya ilmiah ini adalah mengkaji sifat Frieze group, mengkaji penggunaan Frieze group dalam mengklasifikasikan simetri pada pola dan mengkonstruksi pola dengan menggunakan software tesselmania. Hasil yang telah diperoleh, bahwa jenis Frieze groups merupakan subgroup dari grup pergerakan pola. Selain itu dapat dilihat dari sifat isomorfik berbagai jenis Frieze groups. Untuk mengkonstruksi sebuah bentuk pola dapat menggunakan salah satu software untuk membentuk sebuah pola bidang datar (dua dimensi) yaitu tesselmania.
Keyword: Frieze groups, Simetri, Pola