Rapid expansion of leaves of early-stage plants in wheat produced by chromosomal control of characteristics related to rapid expansion of the first six leaves of wheat were investigated using a set of single chromosom...Rapid expansion of leaves of early-stage plants in wheat produced by chromosomal control of characteristics related to rapid expansion of the first six leaves of wheat were investigated using a set of single chromosome substitution lines under two different temperature regimes（TRs）.Results from this study indicated that several chromosomes could be responsible for each of the four characteristics studied（including leaf width,leaf length,leaf elongation rate and leaf appearance index） and that different chromosomes may be responsible for the same characteristics at different TRs.Only a small number of substitutions that showed the most significant effects on leaf length were found among those that showed the most significant effects on leaf width,providing further evidence that these two characteristics are likely controlled by different sets of genes.Substitutions 4B,4D,and 5A are among those that were repeatedly detected to having significant effects on different leaf characteristics at the lower-TR and genes residing on these three chromosomes could be homologous.This possibility and its implication are discussed.展开更多
The chromosome detection in peripheral blood of 1,863 patients in our hospital from January 2011 to June 2016 were analyzed. The quality control and precautions before chromosome detection in peripheral blood were rep...The chromosome detection in peripheral blood of 1,863 patients in our hospital from January 2011 to June 2016 were analyzed. The quality control and precautions before chromosome detection in peripheral blood were reported as follows.展开更多
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
基金supported by the National Food Sup-plies Fertility Scientific Scheme Foundation,China(2006B-AD02A08)Hebei Province’s Natural Scientific Foundation,China (C2008000341)
文摘Rapid expansion of leaves of early-stage plants in wheat produced by chromosomal control of characteristics related to rapid expansion of the first six leaves of wheat were investigated using a set of single chromosome substitution lines under two different temperature regimes（TRs）.Results from this study indicated that several chromosomes could be responsible for each of the four characteristics studied（including leaf width,leaf length,leaf elongation rate and leaf appearance index） and that different chromosomes may be responsible for the same characteristics at different TRs.Only a small number of substitutions that showed the most significant effects on leaf length were found among those that showed the most significant effects on leaf width,providing further evidence that these two characteristics are likely controlled by different sets of genes.Substitutions 4B,4D,and 5A are among those that were repeatedly detected to having significant effects on different leaf characteristics at the lower-TR and genes residing on these three chromosomes could be homologous.This possibility and its implication are discussed.
文摘The chromosome detection in peripheral blood of 1,863 patients in our hospital from January 2011 to June 2016 were analyzed. The quality control and precautions before chromosome detection in peripheral blood were reported as follows.
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.
