A HYPOTHESIS FOR PLASTID EVOLUTION IN CHROMALVEOLATES 1
A HYPOTHESIS FOR PLASTID EVOLUTION IN CHROMALVEOLATES 1
复制标题
铬醛酸酯中质体进化的假设 1
作者：
M. V. Sanchez;C. Delwiche
四个真核生物谱系，即附着植物、泡状植物、隐芽植物和异鞭毛体，在大多数情况下包含光合和非光合成员光合成员具有次生质体，叶绿素c是主要的光合色素。这四个光合谱系根据它们的色素沉着被归为一类，称为染色质膜泡，通常被理解为意味着非光合成员中质体的损失。尽管这组生物的生态和经济重要性，这些藻类之间的系统发育关系只有部分了解，所谓的chromalveolate假说是非常有争议的。本文综述了支持和反对这一分组的证据，并总结了目前的理解chromalveolate演变。我们还描述了一个可检验的假设，旨在适应目前的知识的基础上质体和核基因组数据，讨论这个模型的影响，并评论需要进一步检查的领域。
Four eukaryotic lineages, namely, haptophytes, alveolates, cryptophytes, and heterokonts, contain in most cases photosynthetic and nonphotosynthetic members—the photosynthetic ones with secondary plastids with chl c as the main photosynthetic pigment. These four photosynthetic lineages were grouped together on the basis of their pigmentation and called chromalveolates, which is usually understood to imply loss of plastids in the nonphotosynthetic members. Despite the ecological and economic importance of this group of organisms, the phylogenetic relationships among these algae are only partially understood, and the so‐called chromalveolate hypothesis is very controversial. This review evaluates the evidence for and against this grouping and summarizes the present understanding of chromalveolate evolution. We also describe a testable hypothesis that is intended to accommodate current knowledge based on plastid and nuclear genomic data, discuss the implications of this model, and comment on areas that require further examination.
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影响因子：
10.7
作者：
Bhattacharya,D;Stickel,SK;Sogin,ML
通讯作者：
Sogin,ML
影响因子：
10.7
作者：
Hackett, Jeremiah D.;Yoon, Hwan Su;Bhattacharya, Debashish
通讯作者：
Bhattacharya, Debashish
影响因子：
56.9
作者：
MORSE, D;SALOIS, P;HASTINGS, JW
通讯作者：
HASTINGS, JW
影响因子：
64.8
作者：
Douglas, S;Zauner, S;Maier, UG
通讯作者：
Maier, UG