RESUMEN
Objective: To analyze the genetic diversity and relationship of Epimedium acuminatum from different habitats in Guizhou Province. Methods: PopGene 32 software and NTsys2.10e software was used to analyze the genetic diversity and phylogenetic relationship of five different habitats in Guizhou Province, and phylogenetic tree was constructed according to the UPGMA method. Results: A total of 13 polymorphic and clear bands were screened from 100 random primers showed that amplified 211 bands, of which 205 were polymorphic from the level of species, the percentage of polymorphic bands (PPB) was 97.16%. The Shannon’s information index (I) was 0.455 7; Nei’s gene diversity index (He) was 0.297 3; The effective number (Ne) of alleles was 1.490 2; The total genetic diversity (Ht) of five populations was 0.297 3, while the population genetic diversity within the group (Hs) was 0.207 5, indicated that the genetic variation mainly existed within populations, genetic differentiation within population than that of population between. The population genetic distance clustering was built by UPGMA. The results showed that five populations were divided into two branches, three populations from Anshun, Huaxi, and Gaopo clustered into one branch, and the other two populations from Longli and Leishan populations clustered into one branch. Conclusion: ISSR molecular marker technique can be used to analyze the genetic diversity and phylogenetic relationship of Epimedium acuminatum from different habitats in Guizhou Province.
RESUMEN
Objective: The genetic variation and relationship of 47 pieces of Gardenia jasminoides germplasms were analyzed by SCoT molecular markers. Methods: The genetic similarity coefficient was calculated by NTSYS version 2.1 software and the dendrogram was constructed by UPGMA method. Results: More than 20 polymorphic primers were screened from 36 primers and PCR amplificated to test materials. The primers generated totally 154 bands among which 120 bands were found to be polymorphic, with an average of 78.14%. The genetic similarity coefficient among the germplasms ranged from 0.655 8 to 0.980 5, and the average content was 0.784 1. The clustering results showed that the genetic diversity of G. jasminoides was rich and the genetic relationship was complex. Conclusion: SCoT markers were feasible and effective to analyze the genetic diversity of G. jasminoides germplasm resources. The results provide a reliable theoretical basis for breeding, classification, preservation and utilization of G. jasminoides.
RESUMEN
Objective: To study the germplasm resources of Anoectochilus roxburghii. and the genetic diversity of its spurious breed. Methods: By ISSR-PCR amplification, 24 samples were PCR amplified, and then electrophoresis detected. After marking the electrophoresis strips with "0" and "1" matrix, the genetic distances were calculated by NTSYSpc software, and the dendrogram was constructed by UPGMA. Results: A. roxburghii, A. formosanus, and A. sp. were identified. A. roxburghii with different geographical distribution and morphology had the close genetic relationship. Conclusion: The wild population of A. roxburghii resources have higher genetic diversity, witch could provide a great genetic library for varieties breeding.