完成首個植物基因組序列

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圖片來源:美國國家科學基金會

經過四年的合作,一個國際研究團隊完成了植物擬南芥的首個基因組序列。擬南芥是一種十字花科的開花雜草,本身並不具有農業或藥用價值。但對科學家來說,它是一種模式生物,就像線蟲秀麗隱杆線蟲一樣,具有緊湊的基因組和較短的世代時間——是地球上其他25萬種開花植物的理想代表。因此,冷泉港實驗室的團隊成員羅伯特·馬丁森觀察到,“擬南芥基因組序列的完成對人類健康以及植物生物學和農業具有深遠的影響。”研究人員今天在《自然》雜誌上描述了他們的勞動成果。

這個名為擬南芥基因組計劃的科學聯盟去年完成了該植物兩個染色體的測序。今天的報告描述了另外三個染色體。例如,擬南芥的研究已經向研究人員展示瞭如何保護某些植物免受寒冷和疾病的侵害。然而,完整基因組的可用性應該會產生無數其他的見解。美國國家科學基金會主任麗塔·科爾韋爾說:“今天關於基因組序列完成的訊息很可能標誌著一個全新的植物基因組學產業的開始。”

Kate Wong is an award-winning science writer and senior editor at 大眾科學 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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