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Evaluation of Genetic Variation in Hybrid Catfish (Sangkuriang × Thai) Employing PCR-RAPD Markers Kurnia Anggraini Rahmi; Putriku Nadzira Sativa; Alimuddin Alimuddin; Dinar Tri Soelistyowati
Jurnal Perikanan UGM (Journal of Fisheries Sciences) Vol 28, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.113208

Abstract

Hybridization is the process of crossing individuals with different genotypes to produce offspring with superior traits. In this study, Sangkuriang catfish were crossed with introduced Thai catfish to obtain heterosis in hybrid seeds. The objective was to analyze the genetic diversity of these hybrid seeds using the PCR-RAPD method. Specifically, the primers OPA-13, OPB-08, OPC-19, and OPD-02 were used. Crossbreeding involved Sangkuriang female and Thai male broodstock, with four pairs of broodfish used via a semi-natural spawning method. After spawning, hybrid seeds from each pair were reared separately in containers under uniform conditions for 1.5 months. DNA samples were then collected from the fin tissue of each replicate of the crosses, and were grouped according to size categories: large (7-8 cm), medium (5-6 cm), small (3-4 cm), and broodstock, with 30 samples per size category for each replicate. The results revealed a polymorphism percentage of 72.95-93.88%, heterozygosity values of 0.167-0.232, and an average genetic distance among hybrid seeds from the three size categories and broodstock ranging from 0.001-0.018.
Selection and cultivation of seaweed Kappaphycus alvarezii using a long line system (outdoor) Gloria I. Satriani; Dinar Tri Soelistyowati; Alimuddin Alimuddin; Harton Arfah; Irzal Effendi
Depik Vol 12, No 3 (2023): DECEMBER 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.3.30211

Abstract

In outdoor cultivation at Amal Beach, three seeding mass selections were reared for 30 days for each cycle. Each variety had a different DGR %/day (Daily Growth Rate %/day) value at the end of the growing season on G1-G2-G3 ranging from 3.62-5.90 %/day, which were still categorized as good, and G3 var.Lampung had the highest DGR value. Carrageenan yield values in this study, G1 to G3, ranged from 23.16% to 45.87%, where the G3 G2 G1 treatment. The best thallus samples (20% were selected for each generation) resulted in carrageenan yield sample population in each variety, where var.Lampung var.Tarakan var.Kupang. The biplot analysis shows that the DGR variable vector coincides with the IAA, Phosphate, Gibberellin, and Ammonia vectors. Ammonia stepwise regression analysis (sig) affects DGR with an Ammonia coefficient value of 4.89; meaning that for each increase in the Ammonia value by one unit, the estimated mean value of DGR will increase by 4.89. Thus, the application of themassbased on the results of this study was able to increase the DGR valueKappaphycus alvarezii,which in turn produce the highest yield of carrageenan withK. alvareziivar.Lampung G3 was the best seed candidate to be developed at the seaweed cultivation site in Tarakan City.Keywords:AlgaePhytohormonesCarrageenanNitrogenViscosity
Co-Authors , Alimuddin , Rahman, , Achmad Sudradjat Agus Oman Sudrajat Ahmad Fahrul Syarif Ahmad Muzaki Ahmad Teduh Akbar, Muhamad Saepul Aldilla Kusumawardhani, Aldilla Alimuddin Alimuddin Alimuddin Anang Hari Kristanto Anang Hari Kristanto Aras, Annisa Khairani Arifah Ambarwati Asep Bulkini Bagus Rahmat Basuki Daniel Djokosetiyanto Dendi Hidayatullah, Dendi Deni Radona Deni Radona Dian Hardiantho Dian Hardianto Didik Ariyanto Didik Ariyanto Donny Prariska Dwi Hany Yanti Eddy Supriyono Edison, Thomas Eni Kusrini Erlania Erlania Euis Rakhmawati Fajar Maulana Farah Diana Fauzan, Agung Luthfi Firmansyah, Rodhi Fitriyah Husnul Khotimah Flandrianto S. Palimirmo Gleni Hasan Huwoyon Gleni Hasan Huwoyon Gleni Hasan Huwoyon, Gleni Hasan Gloria I. Satriani Gloria Ika Satriani Gloria Ika Satriani Gunawan, Bambang Kusmayadi Gusti Ngurah Permana Guttifera Hafidah, Riva Hafif Syahputra Hanggara, Yudha Harton Arfah Haryanti Haryanti Haryanti Haryanti Helena Sahusilawane Herjayanto, Muh. Ibrahim Satrio Faqih Ibrahim, Yusran Ida Ayu Amarilia Dewi Murni Imron Imron, Imron Indah Mastuti Intan Putriana Irin Iriana Kusmini Irin Iriana Kusmini Irin Iriana Kusmini Irin Iriana Kusmini Irin Iriana Kusmini Irin Iriana Kusmini, Irin Iriana Irwan Irwan Irzal Effendi Iskandariah Iskandariah Iskandariah, Iskandariah Ketut Mahardika Ketut Sugama Ketut Sugama Khotimah, Fitriyah Husnul Komar Sumantadinata Kukuh Nirmala Kurnia Anggraini Rahmi Ligaya I. T. A. Tumbelaka M. H. Fariduddin Ath-thar M. Syukur M. Zairin Junior Mahardhika, Prana Mahdaliana, Mahdaliana Maulana, Fajar Melta Rini Fahmi MH. Fariduddin Ath-thar Mia Setiawati Muh. Herjayanto Muhamad Syukur MUHAMMAD AGUS SUPRAYUDI Muhammad Fadlan Furqon Muhammad Hunaina Fariduddin Ath-thar Muhammad Sami Daryanto Muhammad Zairin Jr Muhammad Zairin Jr. Muliari Muliari Mulyasari Mulyasari Nasrullah, Hasan Nopri Yanto Odang Carman Oktaviani, Tia Peni Pitriani Poppy Dea Bertha, Poppy Dea Prana Mahardhika Prassetyo Dwi Dhany Wijaya Putriku Nadzira Sativa Rahmadani Rahmadani Ratu Siti Aliah Raudhatus Sa'adah Rezki, Dinda Wahyu RIDWAN AFFANDI Rinaldi Rinaldi Rini Susilowati Rizki Eka Puteri Ronny Rachman Noor Ruby Vidia Kusumah Rudhy Gustiano Rudhy Gustiano Rudhy Gustiano Rudhy Gustiano Rudhy Gustiano Rudhy Gustiano Rudhy Gustiano Rudhy Gustiano Rudhy Gustiano Safira Qisthina Ayuningtyas, Safira Qisthina Sahusilawane, Helena Afia Sandra, Aan Aryanti Sari Budi Moria Sembiring Sari Budi Moria Sembiring Selly Ratna Sari Sholihin, Hidayatush Siti Zuhriyyah Musthofa Sri Nuryati Sri Sundari Sudarto Sudarto Syahril, Alfis Tia Oktaviani Upmal Deswira Vitas Atmadi Prakoso Wahyutomo Wahyutomo Wahyutomo, Wahyutomo Wibowo, Kesit Tisna Wicaksono, Aryo Wenang WIDANARNI WIDANARNI Wildan Nurussalam Wiyoto Wiyoto Yeni Elisdiana Yogi Himawan