Ruth Sager
露丝·萨格尔
Discovered Non-Chromosomal Genes
Biography
Ruth Sager was a geneticist who discovered non-chromosomal (cytoplasmic) genes in the alga Chlamydomonas, proving that hereditary material exists outside the cell nucleus in organelles such as chloroplasts. This challenged the prevailing view that all genes reside on chromosomes. Later in her career at Harvard, she pivoted to cancer genetics and made significant contributions to identifying tumor suppressor genes, advancing the understanding of how cells become cancerous.
露丝·萨格尔是一位遗传学家，她在绿藻衣藻中发现了非染色体（细胞质）基因，证明遗传物质存在于细胞核之外的细胞器（如叶绿体）中。这挑战了所有基因都位于染色体上的主流观点。在她后来于哈佛大学的职业生涯中，她转向癌症遗传学研究，在鉴定肿瘤抑制基因方面做出了重要贡献，推进了对细胞癌变机制的理解。
Key Achievements
Discovered non-chromosomal genes in Chlamydomonas
在衣藻中发现非染色体基因
Proved hereditary material exists outside the nucleus
证明遗传物质存在于细胞核之外
Identified tumor suppressor genes at Harvard
在哈佛鉴定肿瘤抑制基因
References & Citations
- Wikipedia: Ruth Sager — https://en.wikipedia.org/wiki/Ruth_Sager
