MICROCHROMOSOMES IN HOLOCEPHALIAN CHONDROSTEAN AND HOLOSTEAN FISHES

被引：101

作者：

OHNO, S

MURAMOTO, J

STENIUS, C

CHRISTIAN, L

KITTRELL, WA

ATKIN, NB

机构：

[1] Department of Biology, City of Hope Medical Center, Duarte, California

[2] Department of Cancer Research Mount, Vernon Hospital, Northwood, Middlesex

来源：

CHROMOSOMA | 1969年 / 26卷 / 01期

关键词：

D O I：

10.1007/BF00319498

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：

Chondrostean and holostean fish of today are leftover relics: they share some characteristics with the venturesome crossopterygian fish, which launched the evolution of terrestrial vertebrates about 280 million years ago. The chromosome complements and DNA values of one chondrostean and two holostean species as well as one holocephalian species were studied. Their DNA values varied from 37% to 50% of that of mammals, and three of the species contained dot-like microchromosomes in their diploid complements. Their genome size and karyological characteristics are quite similar to those possessed by one group of reptiles and by avian species. © 1969 Springer-Verlag.

引用

页码：35 / +

页数：1