Table 1.
Species | P | No. reads (2×) | No. loci with primers [total no. loci] | ST [SG] (%) | ||
---|---|---|---|---|---|---|
Raw | Filtered | Raw reads | Filtered reads | |||
Amietia hymenopus (Phofung river frog) | 0.5 | 6,465,564 | 3,756,407 |
25,427 [149,271]* 1,345† 216‡ |
11,350 [60,378]* 1097† 144‡ |
56 [64] |
Raja undulata (Undulate ray) | 0.5 | 11,019,590 | 10,174,420 |
267,431 [130,894]* 3119† 428‡ |
107,470 [31,876]* 342† 148‡ |
73 [80] |
Modiolus modiolus (Northern horsemussel) | 0.125 | 4,647,211 | 4,455,417 |
64,489 [44,408]* 1650† 225‡ |
39,232 [16,814]* 707† 144‡ |
53 [74] |
All sequencing was paired end, carried out on the Illumina MiSeq, with sequence lengths of 2 × 250 bp. Trimmomatic settings (SLIDING WINDOW: WINDOW SIZE = 4 bp, QUALITY = 20; LEADING = 3; TRAILING = 3; MINLEN = 50) and primer design conditions (recommended settings for Qiagen Type-it® Microsatellite PCR kit) were constant across all tests. Minimum number of microsatellite repeats to be searched for was eight for all repeat types (2-6mer)
P, proportion of Illumina flow cell lane used; * without pal_filter or assembly; † with pal_filter (all filtering options selected), without assembly; ‡ with pal_filter (all filtering options selected) and assembly; ST, total amplification success rate − percentage of loci tested that resulted in amplifiable loci that could be easily scored when fluorescently labeled and analysed using an automated capillary sequencer; SG, amplification success rate using agarose gel electrophoresis − percentage of loci tested that resulted in clear bands when visualising PCR products of unlabeled primers on an agarose gel. Primers used in this test were developed from Trimmomatic-fitered reads, with all of the pal_filter and assembly options selected