사진

지식채널

• 논문정보

  검색결과 5건

  논문정보 목록 - 제목, 내용, 저자, 저널명/발행자, 상세보기

  제목	내용	저자	저널명/발행자	상세보기
  The Comparative Survey of Coordinated Regulation of Steroidogenic Pathway in Japanese Flounder (Paralichthys olivaceus) and Chinese Tongue Sole (Cynoglossus semilaevis)	Steroidogenesis controls the conversion of cholesterol into steroid hormones through the complex cascade reaction of various enzymes, which play essential roles in sexual differentiation and gonadal development in vertebrates, including teleosts. Japanese flounder (Paralichthys olivaceus) and Chinese tongue sole (Cynoglossus semilaevis) are important marine cultured fishes in China and have remarkable sexual dimorphism with bigger females and sex reversal scenarios from female to neo-male. Several steroidogenic genes have been analyzed individually in the two species, but there is a lack of information on the coordinated interaction of steroidogenic gene regulation. Therefore, in this study, through genomic and transcriptomic analysis, 39 and 42 steroidogenic genes were systematically characterized in P. olivaceus and C. semilaevis genomes, respectively. Phylogenetic and synteny analysis suggested a teleost specific genome duplication origin for cyp19a1a/cyp19a1b, hsd17b12a/hsd17b12b, ara/arb and esr2a/esr2b but not for star/star2 and cyp17a1/cyp17a2. Comparative transcriptome analysis revealed conserved expression patterns for steroidogenic genes in P. olivaceus and C. smilaevis gonads; star/star2, cyp11a/cyp11c, cyp17a1/cyp17a2, cyp21a, hsd3b1, hsd11b and hsd20b were strongly expressed in testis, while cyp19a1a and hsd17b genes were highly expressed in ovaries. Only a few genes were differentially expressed between male and neo-male testis of both P. olivaceus and C. semilaevis, and even fewer genes were differentially regulated in the brains of both species. Network analysis indicated that cyp11c, cyp17a1 and hsd3b1 actively interacted with other steroidogenic genes in P. olivaceus and C. semilaevis, and may play a more sophisticated role in the steroid hormone biosynthesis cascade. The coordinated interaction of steroidogenic genes provided comprehensive insights into steroidogenic pathway regulation with a global biological impact, as well as sexual development in teleost species.	Yang, Fan,Wang, Yapeng,Lu, Wei,Zong, Wenyu,Zhu, Qing,Cheng, Jie	MDPI AG	상세보기
  국내 바다거북류의 출현 현황과 주요 출현 2종의 형태적 특징	Four species of sea turtles (Chelonia mydas, Caretta caretta, Dermochelys coriacea, and Eretmochelys imbricata) have been recorded in Korean waters. However, nationwide surveys on the distribution and occurrence of each species have rarelybeen conducted in Korean waters. In this study, we comparatively analyzed the trends in occurrence of sea turtles and their morphological characteristics based on 148 reliable observations and stuffed specimen data and suggested Korean names for each species. Chelonia mydas (57 cases, 58.8%) and C. caretta (52 cases, 31.5%) were dominant species, and occupied > 90% of all observations. Most of observations of sea turtles in Korean waters were obtained through stranding (61 cases) and incidental catches (62 cases). A coastal set net was the main fishing gear for incidental catches (82%). Sea turtles were found mainly around Jeju-do and the Korea Strait from June to November. Most C. caretta found were adults, whereas most C. mydas were juveniles. Additionally, we provide detailed morphological characteristics of C. mydas (n=8) and C. caretta (n=4) using stuffed specimens. Finally, based on a literature search, we suggest appropriate Korean names, such as 'Pureunbada-geobuk' for C. mydas, 'Bulgeunbadageobuk' for C. caretta, 'Jangsu-geobuk' for D. coriacea, and 'Maeburibada-geobuk' for E. imbricate.	김일훈,문대연,조인영,김민섭,안용락,한동욱,한원민,한동진,박대식	한국수산과학회	상세보기
  서해산 박대, Cynoglossus semilaevis 암컷의 성숙과 산란	박대 생식소중량지수(gonadosomatic index, GSI)의 월간 변화는 2월에서 7월까지는 아주 낮은 값을 보였으나, 8월부터 생식소가 급격히 발달하기 시작하여 9월에 최고값을 나타내었다. 이후 10월부터 점차 낮아져 11월에 다시 낮아지는 경향을 보였다. 비만도(condition factor, CF)의 월간 변화도 9월에 최대값을 보였다. 간중량지수(hepatosomatic index, HSI)의 월간 변화는 6월에 최대값을 보인 후 7월에 급격히 낮아져 최저값을 보인 후 9월부터 증가하기 시작하여 11월에 최대값에 도달하였다. 난소발달은 미성숙기(2~7월), 초기 성숙기(7월 말), 성숙기(8월), 후기 성숙기(8월 말), 완숙 산란기(9~10월), 회복 휴지기(11월)의 6단계로 구분되었다. 박대의 포란수를 조사한 결과, 총 포란수(fecundity, F)와 전장(total length, TL)과의 관계는 $F=251.43TL^{0.1264}$ ( $r^2$ =0.40 0.4027)이었으며, 총 포란수와 체중(body weight, BW)과의 관계는 F=1130.4BW-880848( $r^2$ =0.67 0.677)로 나타났다. 박대 암컷의 50%가 성숙하는 전장은 46.87 cm로 조사되었다.	강희웅,임한규,강덕영,한현섭,도용현,박종순	한국발생생물학회	상세보기
  Luteinising Hormone Releasing Hormone Analogue과 Human Chorionic Gonadotropin 처리가 박대(Cynoglossus semilaevis)의 배정에 미치는 영향	Experiments were carried out examine short-term effects of human chorionic gonadotropin (hCG) and long-term effects of luteinising hormone releasing hormone analogue (LHRHa) on milt production of the tongue sole Cynoglossus semilaevis. In the first experiment, each fish was implanted with a blank cholesterol pellet (control), 100 and $200{mu}g$ LHRHa per kg body weight. In the second experiment, fish were injected with either 100, 200, 400 and 800 IU hCG per kg body weight or same volume of marine fish Ringer's solution. In the first experiment, milt volume was increased in male implanted with $200{mu}g$ LHRHa pellet compared with other groups at day 10. Injection of 400 and 800 IU hCG resulted in an increase in the milt volume at hour 96 after the treatment. Although statistical difference is unable to confirm because of small milt volume, compared with the control group, hormone pellet-treated groups had a reduction in the mean spermatocrit (Sct) and sperm concentration (Sc). The results suggest that the increase in milt volume is at least partially gonadotropin (GtH)-dependent and increased milt volume has a relationship with milt hydration.	임한규,박중열,강희웅	한국수산해양교육학회	상세보기
  대왕바리 암컷을 사용한 두 교잡(대왕바리♀×자바리♂, 대왕바리♀×붉바리♂) 수정란의 난 발생과 부화력	As part of an effort to establish of novel grouper hybrids for the aquaculture industry, we compared the embryonic development of fertilized eggs of giant grouper Epinephelus lanceolatus ♀×kelp grouper E. bruneus ♂ (GGKG) and giant grouper ♀×red-spotted grouper E. akaara ♂ (GGRG) with a maternal purebred (giant grouper ♀×♂, GG) at 27-29℃. The hatching rates were lower in GGKG (2.59%) and GGRG (0.36%) than in GG (12.29%). The hatching times were considerably longer in the two hybrids than in GG (22 h), which were similar between GGKG (28 h 30 min) and GGRG (28 h). The total lengths of yolk-absorbed larvae of GGKG (2.546±0.132 mm) and GGRG (2.602±0.093 mm) were similar to that of GG (2.565±0.149 mm). The deformity rates of hatched larvae (64.29-75.00%) did not differ between the two hybrids and GG. Although the hatching and deformity rates of GGKG and GGRG were inferior to those of GG, the possibility of mass production of the two hybrids larvae was demonstrated in this study.	강민주,노충환,김재훈,박종연,박대원	한국수산과학회	상세보기

• 특허정보

  검색결과 18건

  특허정보 목록 - 제목, 등록/출원번호, 출원인, 원문정보

  제목	등록/출원번호	출원인	원문정보
  박대껍질 묵의 제조방법	1020170092168	군산대학교산학협력단|사단법인 군산박대사업단	원문정보
  박대 어포의 제조방법	1020160161808	군산대학교산학협력단|사단법인 군산박대사업단	원문정보
  박대 포육을 이용한 식품의 제조방법	1020170004628	(유)아리울수산	원문정보
  박대 껍질을 이용한 식품의 제조방법	1020170004629	(유)아리울수산	원문정보
  박대 껍질 성분을 함유하는 비누 조성물 및 그 제조 방법	1020160150423	코리아천연화장품협동조합	원문정보