Manual construction of a rule base for a fuzzy system is the hard and time-consuming task that requires expert knowledge.In this paper we proposed a method based on improved bacterial foraging optimization（IBFO）,whi...Manual construction of a rule base for a fuzzy system is the hard and time-consuming task that requires expert knowledge.In this paper we proposed a method based on improved bacterial foraging optimization（IBFO）,which simulates the foraging behavior of “E.coli” bacterium,to tune the Gaussian membership functions parameters of an improved Takagi-Sugeno-Kang fuzzy system（C-ITSKFS） rule base.To remove the defect of the low rate of convergence and prematurity,three modifications were produced to the standard bacterial foraging optimization（BFO）.As for the low accuracy of finding out all optimal solutions with multi-method functions,the IBFO was performed.In order to demonstrate the performance of the proposed IBFO,multiple comparisons were made among the BFO,particle swarm optimization（PSO）,and IBFO by MATLAB simulation.The simulation results show that the IBFO has a superior performance.展开更多
Genome editing is an advanced genetic modification tool that facilitates the removal,insertion,or substitution of nucleotides in the genome of an organism for mutation induction.CRISPR/Cas9(clustered regularly intersp...Genome editing is an advanced genetic modification tool that facilitates the removal,insertion,or substitution of nucleotides in the genome of an organism for mutation induction.CRISPR/Cas9(clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9)is the most widely used genome editing tool that can precisely modify the specific sequence of a genome.Significant progress has been made in the use of CRISPR/Cas9 for the genetic improvement of food crops.However,in forage crops,the use of CRISPR/Cas9 is still in the infant stage with limited understanding and application.This article reviews current advances in the establishment and application of the CRISPR/Cas9 system in alfalfa,summarizes the application of CRISPR/Cas9 in several other forage legume and grass species,and discusses the prospects of CRISPR/Cas9 in the genetic improvement of forage crops.展开更多
基金supported by the Key Project of Natural Science Fund of Education Department of Anhui Province under Grant No.KJ2015A058Major Program of Teaching Research of Educational Commission of Anhui Province of China under Grant No.2015zdjy059
文摘Manual construction of a rule base for a fuzzy system is the hard and time-consuming task that requires expert knowledge.In this paper we proposed a method based on improved bacterial foraging optimization（IBFO）,which simulates the foraging behavior of “E.coli” bacterium,to tune the Gaussian membership functions parameters of an improved Takagi-Sugeno-Kang fuzzy system（C-ITSKFS） rule base.To remove the defect of the low rate of convergence and prematurity,three modifications were produced to the standard bacterial foraging optimization（BFO）.As for the low accuracy of finding out all optimal solutions with multi-method functions,the IBFO was performed.In order to demonstrate the performance of the proposed IBFO,multiple comparisons were made among the BFO,particle swarm optimization（PSO）,and IBFO by MATLAB simulation.The simulation results show that the IBFO has a superior performance.
基金National Natural Science Foundation of China(U1906201).
文摘Genome editing is an advanced genetic modification tool that facilitates the removal,insertion,or substitution of nucleotides in the genome of an organism for mutation induction.CRISPR/Cas9(clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9)is the most widely used genome editing tool that can precisely modify the specific sequence of a genome.Significant progress has been made in the use of CRISPR/Cas9 for the genetic improvement of food crops.However,in forage crops,the use of CRISPR/Cas9 is still in the infant stage with limited understanding and application.This article reviews current advances in the establishment and application of the CRISPR/Cas9 system in alfalfa,summarizes the application of CRISPR/Cas9 in several other forage legume and grass species,and discusses the prospects of CRISPR/Cas9 in the genetic improvement of forage crops.
