世界上最大的基因组–第 2 级
06-06-2024 07:00
新喀里多尼亚的一种蕨类植物拥有所有生物中最大的基因组。它的基因组,也就是所有的DNA,伸展开来有100米长。
来自英国皇家植物园邱园的伊利亚-莱奇博士说,一种小植物拥有如此多的 DNA 实在令人惊叹。这种名为 Tmesipteris oblanceolate 的蕨类植物生活在恐龙之前,生长在热带雨林的树上。科学家利用染料发现,它的基因组大小为 1600 亿个碱基对。人类约有 30 亿个碱基对。这种蕨类植物的庞大基因组创造了三项世界纪录。
研究它可以帮助科学家了解植物是如何工作的,以及它们灭绝的风险。大基因组需要更多的资源,这会使植物更难生存。
您可以在三级部分观看原始视频。
Tmesipteris oblanceolate蕨类植物拥有庞大的基因组,这对其生存和灭绝风险有何影响?
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