Early metazoan divergence was about 830 million years ago

被引：75

作者：

Xun, G ^{[1
]}

机构：

[1] Penn State Univ, Inst Mol Evolut Genet, University Pk, PA 16802 USA

[2] Penn State Univ, Dept Biol, University Pk, PA 16802 USA

来源：

JOURNAL OF MOLECULAR EVOLUTION | 1998年 / 47卷 / 03期

关键词：

molecular clock; divergence time estimation; cambrian explosion; triploblastic metazon divergence;

D O I：

10.1007/PL00013150

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

From a total of 22 nuclear genes, we estimate that the divergence time between Drosophila and vertebrates was about 830 million years ago (mya), which is significantly (1% level) earlier than the Cambrian explosion indicated by the early triploblastic fossils (<600 mya).

引用

页码：369 / 371

页数：3

共 12 条

[1] Origin of metazoan phyla: Cambrian explosion or proterozoic slow burn? [J].

Bell, MA .

TRENDS IN ECOLOGY & EVOLUTION, 1997, 12 (01) :1-2

[2] Determining divergence times of the major kingdoms of living organisms with a protein clock [J].

Doolittle, RF ;

Feng, DF ;

Tsang, S ;

Cho, G ;

Little, E .

SCIENCE, 1996, 271 (5248) :470-477

[3] The age of the common ancestor of eukaryotes and prokaryotes: Statistical inferences [J].

Gu, X .

MOLECULAR BIOLOGY AND EVOLUTION, 1997, 14 (08) :861-866

[4] Higher Rates of Amino Acid Substitution in Rodents Than in Humans [J].

Gu, Xun ;

Li, Wen-Hsiung .

MOLECULAR PHYLOGENETICS AND EVOLUTION, 1992, 1 (03) :211-214

[5] Continental breakup and the ordinal diversification of birds and mammals [J].

Hedges, SB ;

Parker, PH ;

Sibley, CG ;

Kumar, S .

NATURE, 1996, 381 (6579) :226-229

[6]

Kimura Motoo., 1985, The Neutral Theory of Molecular Evolution

[7] Breathing room for early animals [J].

Knoll, AH .

NATURE, 1996, 382 (6587) :111-112

[8] Molecular clocks: Defusing the Cambrian 'explosion'? [J].

Morris, SC .

CURRENT BIOLOGY, 1997, 7 (02) :R71-R74

[9] An estimate of divergence time of parazoa and eumetazoa and that of cephalochordata and vertebrata by aldolase and triose phosphate isomerase clocks [J].

Nikoh, N ;

Iwabe, N ;

Kuma, K ;

Ohno, M ;

Sugiyama, T ;

Watanabe, Y ;

Yasui, K ;

Zhang, SC ;

Hori, K ;

Shimura, Y ;

Miyata, T .

JOURNAL OF MOLECULAR EVOLUTION, 1997, 45 (01) :97-106

[10] A MOLECULAR-CLOCK DATE FOR THE ORIGIN OF THE ANIMAL PHYLA [J].

RUNNEGAR, B .

LETHAIA, 1982, 15 (03) :199-205

← 1 2 →