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.
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页码：763 / 766
页数：4
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