BIOCHEMICAL PLASTICITY IN THE ARIZONA TIGER SALAMANDER (AMBYSTOMA-TIGRINUM-NEBULOSUM)

被引：4

作者：

BEGUN, DJ ^{[1
]}

COLLINS, JP ^{[1
]}

机构：

[1] ARIZONA STATE UNIV, DEPT ZOOL, TEMPE, AZ 85287 USA

来源：

JOURNAL OF HEREDITY | 1992年 / 83卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1093/oxfordjournals.jhered.a111198

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The Arizona tiger salamander Ambystoma tigrinum nebulosum is a developmentally polymorphic Species Some individuals become sexually mature while retaining some larval traits (paedomorphs), while other individuals mature as metamorphosed salamanders. in this study relative enzyme activities of the products of two duplicate loci in each of three enzyme systems (aconitase. malate dehydrogenase. and isocitrate dehydrogenase) were measured in paedomorphs and in paedomorphs forced to metamorphose by treatment with thyroxine. We found that thyroxine and laboratory conditions affect enzyme activities of four of the six enzymes examined and that activities of products of duplicate loci are altered to different degrees

引用

页码：224 / 227

页数：4

共 30 条

[1]

COLLINS JP, 1983, AM ZOOL, V23, P77

[2]

COLLINS JP, 1981, COPEIA, P666

[3]

Conover W. J., 1971, PRACTICAL NONPARAMET

[4] EVOLUTION OF THE DIFFERENTIAL REGULATION OF DUPLICATE GENES AFTER POLYPLOIDIZATION [J].