ORIGIN OF THE METAZOA

被引：179

作者：

LAKE, JA ^{[1
]}

机构：

[1] UNIV CALIF LOS ANGELES,DEPT BIOL,LOS ANGELES,CA 90024

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1990年 / 87卷 / 02期

关键词：

Annelida; Arthropoda; Mollusca; phylogenetic trees; ribosomal RNA;

D O I：

10.1073/pnas.87.2.763

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The origin of the multicellular animals has been investigated by rate invariant analysis of 18S rRNA sequences. These analyses indicate that (i) the Metazoa is a monophyletic taxon; (ii) the Deuterostomia is a monophyletic taxon; (iii) the Annelida-Mollusca lineage is the sister group of an arthropod subgroup; and (iv) the last common ancester of the Annelida-Mollusca lineage is most parsimoniously derived from a segmented, hemocoelic ancestor with an open circulatory system.

引用

页码：763 / 766

页数：4

共 37 条

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