Cytogenetic Analysis of the Triploid Pacific Abalone, Haliotis discus hannai

Young Ju Jee and Young Jin Chang
Biotechnology Research Division, National Fisheries Research and Development Institute, Gijang-gun, Busan 619-705, Korea Department of Marine Bio-materials and Aquaculture, Pukyong National University, Nam-gu, Busan 608-737, Korea

In this study, we invesgated a cytogenetic analysis of the Pacific triploid abalone, Haliotis discus hannai induced by low temperature treatment. We got a lot of mitotic metaphase chromosome spreads from the triploid and diploid Pacific abalones' hatched larvae (trochophores). The chromosome number of diploid abalone was 2n = 36 and that of triploid abalone was 3n = 54, so the chromosome number of triploid abalone was 1.5 times higher than that of diploid abalone. We developed a modified flow cytometric method for Pacific abalone from the existing methods. We uesd 51 months aged triploid and diploid Pacific abalones' hemolymph to get the DNA contents by flow cytometry. The DNA content of diploid abalone was 1.743 pg/cell and the DNA content of triploid abalone was 1.49 times higher than that of diploid one. It proved that triploid abalone was consisted with two sets of maternal diploid and one set of paternal genome.

  
v28_1_37-43.pdf (1.8M), Down : 179, 2012-05-03 10:38:54

   

»ç¹«±¹ & ÆíÁý±¹ : Ãæ³² ¾Æ»ê½Ã ½Åâ¸é ¼øõÇâ·Î 22 ÀÚ¿¬°úÇдëÇР3317È£ / Tel: 041-530-3040 / E-mail : malacol@naver.com