caa a22 4500 605464286 CHVBK 20210128100257.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s10499-015-9892-9 doi (NATIONALLICENCE)springer-10.1007/s10499-015-9892-9 Effect of inbreeding on growth and genetic diversity of Portunus trituberculatus based on the full-sibling inbreeding families [Elektronische Daten] [Baoquan Gao, Ping Liu, Jian Li, Qingyin Wang, Zhike Han] This present study aimed to investigate the effects of inbreeding on growth traits and genetic diversity in the swimming crab, Portunus trituberculatus. To this end, full-sibling inbred groups were established at four levels of inbreeding coefficient (F values of 0.25, 0.375, 0.5, and 0.5937). The growth traits of the control group (F≈0) differed significantly from each of the inbred groups at three ages (80, 100 and 120 days old). Significant inbreeding depression was found in all inbred groups (P<0.05) and this ranged from −2.55 to −21.75%, and there was a tendency for inbreeding depression to increase with increasing F value and age. At 120days old, inbreeding depression was 7.6, 15.30, 16.89 and 21.75% for the F values of 0.25, 0.375, 0.50 and 0.5937, respectively. Moreover, there was a tendency for inbreeding depression of body weight to increase with the increasing age; for example, inbreeding depression was greater at 120days compared to that of 80 and 100days old. Inbreeding depression per 10% increase in the inbreeding coefficient value ranged from −1.02 to −4.08%. The genetic parameter (e.g., PIC, n a , a e , Ho and He values) decreases with the increasing level of inbreeding. The greatest changes in the various genetic results are between the control group and the group (F=0.25), thereafter the rate of loss slows. This present study demonstrates that inbreeding has negative effects on growth traits and genetic diversity in P. trituberculatus, thus strengthening the case to maximize genetic diversity in selective breeding programs. Springer International Publishing Switzerland, 2015 Portunus trituberculatus nationallicence Inbreeding depression nationallicence Growth traits nationallicence Genetic variability nationallicence Gao Baoquan College of Life Science and Technology, Ocean University of China, 266003, Qingdao, People's Republic of China aut Liu Ping Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 266071, Qingdao, People's Republic of China aut Li Jian Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 266071, Qingdao, People's Republic of China aut Wang Qingyin College of Life Science and Technology, Ocean University of China, 266003, Qingdao, People's Republic of China aut Han Zhike Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 266071, Qingdao, People's Republic of China aut Aquaculture International Springer International Publishing 23/6(2015-12-01), 1401-1410 0967-6120 23:6<1401 2015 23 10499 https://doi.org/10.1007/s10499-015-9892-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10499-015-9892-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gao Baoquan College of Life Science and Technology, Ocean University of China, 266003, Qingdao, People's Republic of China aut NATIONALLICENCE 700 1- Liu Ping Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 266071, Qingdao, People's Republic of China aut NATIONALLICENCE 700 1- Li Jian Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 266071, Qingdao, People's Republic of China aut NATIONALLICENCE 700 1- Wang Qingyin College of Life Science and Technology, Ocean University of China, 266003, Qingdao, People's Republic of China aut NATIONALLICENCE 700 1- Han Zhike Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 266071, Qingdao, People's Republic of China aut NATIONALLICENCE 773 0- Aquaculture International Springer International Publishing 23/6(2015-12-01), 1401-1410 0967-6120 23:6<1401 2015 23 10499