genetical marker的用法和样例：
例句
- Genetic Markers and Their Application in Studying Phylogeny of Capsicum spp.
遗传标记技术及其在辣椒系统发育中的应用研究。 - Genetic markers showed the presence of partly-deeloped sperm cells called spermatagonial stem cells, which are an early phase of the male germ cell deelopment.
遗传标记显示存在部分分化的精子细胞即精原细胞，男性生殖细胞发育的早期阶段。
