针叶树基因组资源及其在遗传育种中的作用

Conifer genomic resources and its applications in conifer genetics breeding

针叶树遗传改良已经进行了半个多世纪,但由于基因组巨大、杂合度高和世代周期长等特点,针叶树基因组资源开发滞后于作物和阔叶树种,这直接导致了基因组辅助育种工具的缺乏,进而阻碍了林木遗传改良的进程。回顾了近年来针叶树基因组研究进展,重点阐述了分子标记和转录本在针叶树遗传育种领域中的重要作用。新一代测序技术的出现将使针叶树基因组资源研究进入一个重要和多产的时期,针叶树基因组资源在林木育种的作用也将越来越受到关注。

Breeding programs to improve conifers have been in existence for more than 50 years, but progress has been slow because of the large size of genome and absent genomic-assisted breeding tools. Over the past two decades, research in conifer genomics has lagged behind that of agricultural and major hardwood species. This paper summarized the progress on conifer genomics research over resent years and molecular markers and transcripts applications in conifer genetics breeding. Genomic research in conifer was poised to enter into an important and productive phase owing to the advent of the new-generation sequencing technologies, and conifer genomics resources would play a more and more important role in conifer genetics breeding. [Ch, 115 ref. ]