Ephedra as a gymnosperm evo-devo model lineage
Ephedra as a gymnosperm evo-devo model lineage
复制标题
DOI：
10.1111/ede.12370
复制
发表时间：
2021-01-27
影响因子：
2.9
通讯作者：
Ickert-Bond, Stefanie M.
中科院分区：
文献类型：
--
作者：
Di Stilio, Veronica S.;Ickert-Bond, Stefanie M.
显花植物中建立的模式系统极大地促进了我们对植物发育生物学的理解，反过来又促进了对不同陆生植物的研究。然而，对有限数量的模式生物的依赖构成了进化发育生物学（evo-devo）未来进展的障碍。特别是，种子植物性状进化及其遗传和发育基础的更彻底的理解，部分受到缺乏裸子植物模型系统的阻碍，因为大多数是几十年的世代时间的树木。在未来模式生物应根据其特征多样性而不是简单的系统发育“位置”进行选择的前提下，我们强调了可以通过麻黄属（买麻藤目）比较研究来解决的潜在感兴趣的生物学问题。除了与大多数其他裸子植物相比具有相对较小的基因组和较短的世代时间外，麻黄还适合研究授粉和种子传播的关键生殖种子植物创新的进化，以及多倍体和适应极端环境。
Established model systems in the flowering plants have greatly advanced our understanding of plant developmental biology, facilitating in turn its investigation across diverse land plants. The reliance on a limited number of model organisms, however, constitutes a barrier for future progress in evolutionary developmental biology (evo-devo). In particular, a more thorough understanding of seed plant character evolution and of its genetic and developmental basis has been hampered in part by a lack of gymnosperm model systems, since most are trees with decades-long generation times. Guided by the premise that future model organisms should be selected based on their character diversity, rather than simply phylogenetic "position," we highlight biological questions of potential interest that can be addressed via comparative studies in Ephedra (Gnetales). In addition to having relatively small genomes and shorter generation times in comparison to most other gymnosperms, Ephedra are amenable to investigations on the evolution of the key reproductive seed plant innovations of pollination and seed dispersal, as well as on polyploidy, and adaptation to extreme environments.