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It is normally difficult to distinguish germplasms of Kadsura coccinea with morphological traits before they bear fruits because the evaluations on the specificity are mainly based on fruit and economic traits. Establishing DNA fingerprinting profile is useful for rapid and accurate identification of K. Coccinea germplasms. SSR analysis for 20 clones of K. coccinea was conducted using 15 pairs of primers, the clones were clustered based on Nei's (1972) genetic distance by UPGMA clustering method, and SSR fingerprinting profile was established through combinations of some markers. 15 pairs of primers produced 75 alleles at 15 loci from 20 clones of K. coccinea, with two to 15 alleles per locus, the Shannon diversity index varied from 0.199 to 2.456, polymorphic information index from 0.095 to 0.894, and genetic similarity coefficient from 0.328 to 0.891. The 20 clones could be divided into two groups by the UPGMA clustering method. All the 15 loci could not distinguish 20 clones separately, among which KCZ023 showed the strongest ability to distinguish. Two-loci combinations of KCZ023 with KCZ135, KCZ100 or KCZ147 as well as 28 three-loci combinations could distinguish all the 20 clones separately. The 20 clones of K. coccinea show abundant genetic diversity, and can be fully distinguished by any of three two-loci combinations or 28 three-loci combinations. The findings would provide evidences for germplasm identification and hybrid parent selection.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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