Percentage of polymorphic bands is 51%,the value of Shannon index(I) is 0.086 and Nei's gene diversity(h) is 0.151. The genetic data were analyzed using the POPGENE version 1.31 and the NTSYS version 2.02 and dendrograms were constructed using similarity coefficient and UPGMA clustering method.
2 The case-based optimum design method of green manufacturing process parameter is proposed, and case-base establishing, similarity coefficient determining, case extracting, and optimization principles are analyzed. On the base of that, optimization mathematical model is established and the solving algorithm is studied.
According to the results of ISSR amplification, which were analyzed to Jaccard similarity coefficient by NTSYSpc2.10e software, the genetic similarity coefficient was 0.27 to 0.75. The average genetic similarity coefficient was 0.471. The clustering dendrogram was constructed by UPGMA method.
It is the most important in Floristic Geography to determine floristic region, geographical features of transitional floristic region and evolution of flora by correcting and using the coefficient of similarity.
The results show that the similarity of bryophyte vegetation between Tianshan Mountains and Altai Mountains is the highest one,among three mountains in Xinjiang. The coefficient of similarity of their families,genera and species are 86.11%,64.45% and 50.45% respectively,which indicates the bryophyte flora of Altai Mountains is close to that of Tianshan Mountains.
②The coefficient of similarity is considerably low between all plots,while species turnover rate is quite high among the plots and is higher in dolomite region than that of in limestone;
The coefficient of similarity of their families. genera and species are 85. 71%, 56. 84 %, 39. 14% respec-tively, which indicates the lichens flora of Altai Mountains is close to that of Tianshan Mountains. The result ofcoefficient of similarity analysis are in accordance with result of climatic data analysis.
The similarity coefficients between P. jishanensis and the three species P.rockii, P.ostii, P.qiui, and between P.jishanensis and P.decomposita were both 0.48. These five species were clustered in another clade.
Analysis of amplified polymorphic DNA fragments showed that the Nei's similarity coefficients of isolates were 0.560 -0.949. The tested isolates could be classified into 5 RAPD groups (A, B, C, D, and E), and most of the isolates from the same area clustered in a same group by using UPGMA analyses.
In this paper, 4 similarity coefficients and 9 cluster methods are used to analyse 26 types of Populus tomentosa Carr. and 5 relative species (include variety), besides, 26 characters are presented.
The diversity measurements of molluscas in ten different habitats show that the values of species richness index D_(MA) range from 19.914 to 15.444; species diversity index H' range from 1.327 to 0.953; and evenness indexing J_(sw) range from 0.955 to 0.836.Based on similarity coefficients C,ten habitats can cluster at the level of 0.574 3 with the systematic clustering.
C. albicans isolates were related to each other with the similarity coefficients of more than90%,while different Candida species were connected to each other with the similarity coefficients of80%~90%.
The intra-population genetic similarity index of Qiupu river Mandarinfishes,Changjiang Mandarinfishes and Wanfuhu Mandarinfishes were 0.9063,0.8839,0.8931;
The species diversity index within community changed from 0.291 to 2.889, the superiority index from 0.155 to 0.914 and the evenness index from 0.113 to 0.970. The similarity index between communities was the highest between station 2 and station 3 (mean 0.649) and the lowest appeared between station 1 and station 4 (0.245).
The averaged RAPD-based similarity coefficient (Pearson's) was 0.68 for all the species, and was sectionspecific: 0.43 (bithynica), 0.50 (faba) and 0.73 (narbonensis).
A similarity coefficient based on the longest common operation subsequence between part types is defined and used to group parts into independent, flow-line families.
In the first phase, an operation sequence-based similarity coefficient is applied in a p-median model to group the parts to form part families with similar operation sequences.
In this method, the mean value of the coefficient of similarity between all plots of the transect is used for estimating the rate of changes in species composition.
An unweighted pair group method with arithmetic mean (UPGMA) tree established from Jaccard similarity coefficients suggested that 14 individuals were clustered into two subgroups and that the No.
Pairwise similarity coefficients were calculated to construct a dendrogram of genetic similarity, which reflected the relationships between the parental species and hybrids varying in degree of consanguinity.
guentherpetersi lizards were characterized by monophyletic DNA fingerprint profiles for the loci detected by the (GACA)4, (GGCA)4, and (CAC)5 probes, in terms of intrapopulation similarity index constituting S = 0.96.
Unlike the indices traditionally employed in X-ray powder diffraction analysis, the new similarity index can be applied even in the case of overlapping peaks and large differences in unit cell parameters.
相似性系数
similarity coefficient
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