Sarcobataceae - a new family of Caryophyllales
Sarcobataceae - a new family of Caryophyllales
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作者：
Behnke, HD
本文对石竹属植物的发现、早期描述及其分类历史进行了综述。对萼叶目中筛元质体的形态和大小的研究表明，Sarcobatus（迄今为止属于藜科）与大多数藜科/苋菜科分支（即藜亚目）之间存在显著差异。p3cf形式的筛元质体的存在和伴随而来的Chenopodiineae特异性p3f形式质体的缺失强化了其他证据，特别是来自叶绿体DNA测序的证据，使Sarcobatus与Chenopodiineae分支明显不同，并表明其适当的位置在植物科和Nyctaginaceae附近。因此，石竹属被分离为一个新的科——石竹科。
A review of the discovery and early descriptions of Sarcobatus as well as of its taxonomic history is presented. Studies of the form and size of sieve-element plastids in the order Calyophyllales reveal significant differences between Sarcobatus (so far in Chenopodiaceae) and the majority of the Chenopodiaceae/Amaranthaceae clade (i.e., suborder Chenopodiineae). The presence of P3cf-form sieve-element plastids and concomitant absence of chenopod-specific P3f-form plastids reinforce other evidence, in particular from chloroplast DNA sequencing, to make appear Sarcobatus quite distinct from the Chenopodiineae clade and suggest that its proper place is in the vicinity of the Phytolaccaceae and Nyctaginaceae. Therefore, Sarcobatus is segregated as a new family, Sarcobataceae.