Observations on the phylogenetic systematics and biogeography of the Solieriaceae (Gigartinales, Rhodophyta) inferred from rbcL sequences and morphological evidence
Observations on the phylogenetic systematics and biogeography of the Solieriaceae (Gigartinales, Rhodophyta) inferred from rbcL sequences and morphological evidence
复制标题
从 rbcL 序列和形态学证据推断的 Solieriaceae（Gigartinales、Rhodophyta）系统发育系统学和生物地理学观察
DOI：
10.1023/a:1017077831840
复制
发表时间：
1999
期刊：
影响因子：
2.6
通讯作者：
M. Hommersand
中科院分区：
文献类型：
--
作者：
S. Fredericq;D. W. Freshwater;M. Hommersand
通过对叶绿体编码的rbcL序列的分析，提出了一个关于Solieriaceae成员的系统发育关系的假说，Solieriaceae是一个含有卡拉胶类型藻胶的重要家族。以前的研究证实，红豆科在红豆科复合体中形成了一个末端支系，该复合体是千年树科复合体(千年树科和泡菜科)的姊妹科簇。红豆科(包括龙舌兰科)目前约有20个属，广泛分布于世界各地的暖温带和热带水域。分子rbcL和已发表的形态证据与该科起源于澳大拉西亚，其热带代表从西到东远至北美和南美洲的太平洋海岸的特提斯分布一致。南侧的谱系(Callophycus、Rhabdonia、Areschougia和Erythroclonium)在树的底部被分解。其余的属组成热带和亚热带星系团，形成一个健壮的末端支系(100%自举支持)。这个组合可以分为七个群，其中大多数得到了强有力的自举支持：(1)Sarconema，(2)Eucheuma群，(3)大西洋Solieria群，(4)印度-太平洋Solieria robusta群，(5)Meristiella/Meristotheca群，(6)Agardhiella和(7)Sarcodiotheca群，包括来自加利福尼亚州海湾的‘Eucheuma’uncinata。根据Maxwell Doty提出的组，在Eucheuma组中识别出4个种群：Eucheuma、Gelatiformia(=Betassicus)、Anaxiferae和Cottoniformia(=Kappassicus)。对于适合于裸子植物的分类等级，没有达成任何决定。
A hypothesis of phylogenetic relationships inferred from analysis of plastid-encoded rbcL sequences is presented for members of the Solieriaceae, an economically important family containing carrageenan-type phycocolloids. Previous studies established that the Solieriaceae sensu lato forms a terminal clade in the Solieriaceae complex, a cluster of families sister to the Gigartinaceae complex (Gigartinaceae and Phyllophoraceae). The family Solieriaceae (including the Areschougiaceae) presently contains about 20 genera that are widely distributed in warm-temperate and tropical waters throughout the world. Molecular rbcL and published morphological evidence are consistent with an Australasian origin for the family and a Tethyan distribution for its tropical representatives from west to east as far as the Pacific coast of North and South America. The austral lineages (Callophycus, Rhabdonia, Areschougia and Erythroclonium) are resolved at the base of the tree. The remaining genera , comprising the tropical and subtropical cluster, form a robust terminal clade (100% bootstrap support). This assemblage can be divided into seven groups, most of which receive strong bootstrap support: (1) Sarconema, (2) a Eucheuma group, (3) an Atlantic Solieria group, (4) an Indo-Pacific Solieria robusta group, (5) a Meristiella/Meristotheca group, (6) Agardhiella and (7) a Sarcodiotheca group that includes 'Eucheuma' uncinatum from the Gulf of California. Four clusters of species are recognized in the Eucheuma group that correspond to the sections: Eucheuma, Gelatiformia (= Betaphycus), Anaxiferae, and Cottoniformia (= Kappaphycus) proposed by Maxwell Doty. No decision is reached regarding the taxonomic rank appropriate to the eucheumoid taxa.