完成首个植物基因组序列

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图片来源:美国国家科学基金会

经过四年的合作,一个国际研究团队完成了植物拟南芥的首个基因组序列。拟南芥是一种十字花科的开花杂草,本身并不具有农业或药用价值。但对科学家来说,它是一种模式生物,就像线虫秀丽隐杆线虫一样,具有紧凑的基因组和较短的世代时间——是地球上其他25万种开花植物的理想代表。因此,冷泉港实验室的团队成员罗伯特·马丁森观察到,“拟南芥基因组序列的完成对人类健康以及植物生物学和农业具有深远的影响。”研究人员今天在《自然》杂志上描述了他们的劳动成果。

这个名为拟南芥基因组计划的科学联盟去年完成了该植物两个染色体的测序。今天的报告描述了另外三个染色体。例如,拟南芥的研究已经向研究人员展示了如何保护某些植物免受寒冷和疾病的侵害。然而,完整基因组的可用性应该会产生无数其他的见解。美国国家科学基金会主任丽塔·科尔韦尔说:“今天关于基因组序列完成的消息很可能标志着一个全新的植物基因组学产业的开始。”

Kate Wong is an award-winning science writer and senior editor at 大众科学 focused on evolution, ecology, anthropology, archaeology, paleontology and animal behavior. She is fascinated by human origins, which she has covered for more than 25 years. Recently she has become obsessed with birds. Her reporting has taken her to caves in France and Croatia that Neandertals once called home, to the shores of Kenya's Lake Turkana in search of the oldest stone tools in the world, to Madagascar on an expedition to unearth ancient mammals and dinosaurs, to the icy waters of Antarctica, where humpback whales feast on krill, and on a "Big Day" race around the state of Connecticut to find as many bird species as possible in 24 hours. Kate is co-author, with Donald Johanson, of Lucy's Legacy: The Quest for Human Origins. She holds a bachelor of science degree in biological anthropology and zoology from the University of Michigan. Follow Wong on X (formerly Twitter) @katewong

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