STRs, simple tandem repeats; SNPs, single nucleotide polymorphisms.
LINEs, long interspersed nuclear elements; SINEs, short interspersed nuclear elements;
LTR, long terminal repeat. FISH, Fluorescent in situ Hybridization;
STS, Sequence Tagged Site EST, End Sequence Tag.
STS一般为100-500bp的DNA片段，只在整个genome或染色体中出现1次。
