3.3. Genetic Relationships of 115 Sugarcane ParentsNine series from 115 accessions sorted by institution-based breeding programme are shown in Table 5. According to the information indicated in Table 1, we assigned them as http://www.selleckchem.com/products/Enzastaurin.html the following nine series: GT series (13) from Guangxi Sugarcane Institute; YT series (13) from Guangzhou Institute of Sugarcane and Sugar Industry; YC series (10) from Hainan Sugarcane Breeding Station; FN series (7) from Sugarcane Research Institute of FAFU; MT series (7) from Sugarcane Research Institute, Fujian Academy of Agricultural Sciences; HoCP series (4) from Sugarcane Research Unit, Houma, Louisiana, United States Department of Agriculture, USA; CP series (10) from Sugarcane Experiment Station, Canal Point, Florida, United States Department of Agriculture, USA; and ��ROC�� series (13) from Taiwan Sugar Corporation.
The rest of the sugarcane parents included 37 accessions from several breeding institutions different from all the above eight and were termed as OTHER.Table 5Genetic diversity of sugarcane parents in 9 series released by different breeding institutions, estimated based on polymorphisms of 5 SSR loci.Genetic diversity parameters for the 5 microsatellite markers in the 9 sugarcane series were presented in Table 5, indicating that except the highest NPB value (62 stands for 70.45%) observed in OTHER series, the polymorphisms among eight determinate series were as follows: YT (50, 56.82%) > YC (49, 55.68%) > GT (47, 53.41%) > ��ROC�� (46, 52.27%) > MT (44, 50.00%) > FN (37, 42.05%) > CP (36, 40.91%) > HoCP (32, 36.36%).
Observed numbers of alleles (Na) were higher in OTHER (Na = 1.705) and YT (Na = 1.568) series compared to those of the remaining seven series. Moreover, effective numbers of alleles (Ne) were also higher in OTHER (Ne = 1.290) and YC (Ne = 1.290) series compared to those of the remaining seven determinate series. Except OTHER series (h = 0.177, I = 0.278), both the gene diversity (h) and the Shannon information index (I) were higher in YC (h = 0.178, I = 0.275) series but lower in CP series (h = 0.136, I = 0.181).The number of alleles based on 5 SSR loci in different series of GT, YT, YC, FN, MT, HoCP, CP, ��ROC,�� and OTHER was illustrated in Figure 1. A total of 1,395 alleles were detected for all the 115 testing sugarcane accessions with an average of 12.
The maximum number of alleles was 18 observed in YT93-159, while the minimum number was 7 in three accessions of GT90-55, YC96-48, and FN93-3608. Within the GT and FN series, the number of alleles both ranged from 7 to 15 with mean values of 11.8 and 11.1, respectively. In YT series, the number of alleles per locus ranged from 8 to 18 Dacomitinib with an average of 12.6. Within MT series, the number of alleles ranged from 8 to 14, and the average number was 11.3.