Sex is prevalent in nature and sex determination is one of the most fundamental biological processes, while the way of initiating female and male development exhibits remarkable diversity and variability across verteb...Sex is prevalent in nature and sex determination is one of the most fundamental biological processes, while the way of initiating female and male development exhibits remarkable diversity and variability across vertebrates. The knowledge on why and how sex determination mechanisms evolve unusual plasticity remains limited. Here, we summarize sex determination systems,master sex-determining genes and gene-regulatory networks among vertebrates. Recent research advancements on sex determination system transition are also introduced and discussed in some non-model animals with multiple sex determination mechanisms. This review will provide insights into the origin, transition and evolutionary adaption of different sex determination strategies in vertebrates, as well as clues for future perspectives in this field.展开更多
The effects of GA3,6-BA,CEPA,PP333 and CCC were experimented on length and diameter of shoots,number of staminte and pistillate per shoot,length of spike and fleabane number of Castanea mollissima . The results ...The effects of GA3,6-BA,CEPA,PP333 and CCC were experimented on length and diameter of shoots,number of staminte and pistillate per shoot,length of spike and fleabane number of Castanea mollissima . The results showed that the number of pistillate was increased significantly by spraying GA3, 6-BA and PP333 and decreased by CEPA. The number of staminte was reduced by GA3 and CEPA(50 mg·L-1 treatment promoted). The vegetative growth was promoted by GA3,6-BA and CEPA and prevented by PP333 and CCC. The length of spike was restrained by GA3 and CEPA. The number of fleabane was promoted by GA3 and PP333 and prevented by CEPA. PP333 (500,1 000 mg·L-1 ) were optimal recipe for enhancing the number of female flowers and fleabane number.展开更多
基金supported by the Key Program of Frontier Sciences of the Chinese Academy of Sciences (QYZDY-SSWSMC025)the National Natural Science Foundation of China (31502148 and 31873036)+3 种基金the Earmarked Fund for Modern Agro-industry Technology Research System (NYCYTX-49)the Autonomous Project of the State Key Laboratory of Freshwater Ecology and Biotechnology (2016FBZ01)the Autonomous Project of the Institute of Hydrobiology, Chinese Academy of Sciences (Y25A171)the Knowledge Innovation Program of the Chinese Academy of Science
文摘Sex is prevalent in nature and sex determination is one of the most fundamental biological processes, while the way of initiating female and male development exhibits remarkable diversity and variability across vertebrates. The knowledge on why and how sex determination mechanisms evolve unusual plasticity remains limited. Here, we summarize sex determination systems,master sex-determining genes and gene-regulatory networks among vertebrates. Recent research advancements on sex determination system transition are also introduced and discussed in some non-model animals with multiple sex determination mechanisms. This review will provide insights into the origin, transition and evolutionary adaption of different sex determination strategies in vertebrates, as well as clues for future perspectives in this field.
文摘The effects of GA3,6-BA,CEPA,PP333 and CCC were experimented on length and diameter of shoots,number of staminte and pistillate per shoot,length of spike and fleabane number of Castanea mollissima . The results showed that the number of pistillate was increased significantly by spraying GA3, 6-BA and PP333 and decreased by CEPA. The number of staminte was reduced by GA3 and CEPA(50 mg·L-1 treatment promoted). The vegetative growth was promoted by GA3,6-BA and CEPA and prevented by PP333 and CCC. The length of spike was restrained by GA3 and CEPA. The number of fleabane was promoted by GA3 and PP333 and prevented by CEPA. PP333 (500,1 000 mg·L-1 ) were optimal recipe for enhancing the number of female flowers and fleabane number.
