A great deal of information is known regarding the process of sex differentiation in fish, and
the mechanisms involved in primary sex determination are now beginning to be defined. A …

The number of cytogenetic studies of marine fish has increased in recent years. Fish groups,
such as Perciformes, which comprises many of the extant marine teleosts of economic …

In fish, pre-embryonic events such as insemination, second polar body extrusion and first
mitotic cleavage are manipulable and render 37 different types of ploidy induction possible …

The cloning of the SRY gene and the attainment of XX mice transgenic for the Sry gene
opened a new era in research on sex determination. This book surveys current knowledge …

The Neotropical freshwater fish fauna is very rich—according to the most recent catalogue
71 families and 4,475 species have been described. However, only a small amount of …

Parodon hilarii, a neotropical fish species of the family Parodontidae, presents a well-
differentiated ZZ/ZW system, with a W chromosome being the largest in the complement and …

The neotropical fish, Hoplias malabaricus, is well known for its population-specific karyotypic
diversity and the variation of its sex chromosomes. Seven karyomorphs (A to G) have been …

Primary studies on whole sequenced genomes focused on single genes and little attention
was directed to repetitive DNAs, and duplicated segments. Single-and few-copy sequences …

Abstract Distribution of 12 mono-, di-and tri-nucleotide microsatellites on the chromosomes
of 2 karyomorphs with 2 distinct sex chromosome systems (a simple XX/XY–karyomorph B …

Approximately 90 species in the genus Leporinus (Characiformes, Anostomidae) are known,
and most of them do not present differentiated sex chromosomes. However, there is a group …