Insights into Conifer Giga-Genomes
Insights into Conifer Giga-Genomes
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DOI：
10.1104/pp.114.248708
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发表时间：
2014-12-01
期刊：
影响因子：
7.4
通讯作者：
Bohlmann, Joerg
中科院分区：
文献类型：
--
作者：
De La Torre, Amanda R.;Birol, Inanc;Bohlmann, Joerg
对主要陆地植物谱系的基因组测序的见解在植物生物学的几乎每个方面都推进了研究。然而，直到最近，裸子植物的组装基因组序列一直在这张照片中缺失。松科针叶树是一组裸子植物，占世界森林的大部分。尽管针叶树在生态和经济上具有重要意义，但它们似乎长期无法进行完整的基因组测序，部分原因是它们巨大的基因组大小（20-30 Gb）及其基因组的高度重复性。基因组测序和组装技术的进步使得最近发表的三种针叶树基因组成为可能：白色云杉（Picea glauca）、挪威云杉（Picea abies）和火炬松（Pinus taeda）。这些基因组序列与其他植物基因组相比显示出独特的特征，可能代表了种子植物基因组过去的一个窗口。本更新强调了最新的进展，剩余的挑战和机遇，鉴于第一个针叶树和裸子植物基因组的出版。
Insights from sequenced genomes of major land plant lineages have advanced research in almost every aspect of plant biology. Until recently, however, assembled genome sequences of gymnosperms have been missing from this picture. Conifers of the pine family (Pinaceae) are a group of gymnosperms that dominate large parts of the world's forests. Despite their ecological and economic importance, conifers seemed long out of reach for complete genome sequencing, due in part to their enormous genome size (20-30 Gb) and the highly repetitive nature of their genomes. Technological advances in genome sequencing and assembly enabled the recent publication of three conifer genomes: white spruce (Picea glauca), Norway spruce (Picea abies), and loblolly pine (Pinus taeda). These genome sequences revealed distinctive features compared with other plant genomes and may represent a window into the past of seed plant genomes. This Update highlights recent advances, remaining challenges, and opportunities in light of the publication of the first conifer and gymnosperm genomes.