@article{article3a6be287,
title   = {Sex chromosome evolution in fish. II. Second occurrence of an 'X IND.1''X IND.2'Y sex chromosome system in Gymnotiformes},
author = {Almeida-Toledo, Lurdes Foresti de and Daniel-Silva, Maria de Fátima Zambelli and Lopes, C E and Toledo Filho, Sílvio de Almeida},
year = {2000},
journal   = {Chromosome Research}
}