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Genetics

Title:		Genetic interactions among sex-determining genes in the fern Ceratopteris richardii
Author(s):		Eberle JR; Banks JA;
Address:		"Department of Botany and Plant Pathology, Purdue University, West Lafayette, Indiana 47906, USA"
Journal Title:		Genetics
Year:		1996
Volume:		142
Issue:		3
Page Number:		973 - 985
DOI:		10.1093/genetics/142.3.973
ISSN/ISBN:		0016-6731 (Print) 0016-6731 (Linking)
Abstract:		"Haploid gametophytes of the fern Ceratopteris are either male or hermaphroditic. The determinant of sex type is the pheromone antheridiogen, which is secreted by the hermaphrodite and directs male development of young, sexually undetermined gametophytes. Three phenotypic classes of mutations that affect sex-determination were previously isolated and include the hermaphroditic (her), the transformer (tra) and feminization (fem) mutations. In the present study, linkage analysis and tests of epistasis among the different mutants have been performed to assess the possible interactions among these genes. The results indicate that sex determination in Ceratopteris involves at least seven interacting genes in addition to antheridiogen, the primary sex-determining signal. Two models describing how antheridiogen may influence the activity states of these genes and the sex of the gametophyte are discussed"
Keywords:		"*Genes, Plant Genetic Linkage Mutation Plants/*genetics;"
Notes:		"MedlineEberle, J R Banks, J A eng Research Support, U.S. Gov't, Non-P.H.S. 1996/03/01 Genetics. 1996 Mar; 142(3):973-85. doi: 10.1093/genetics/142.3.973"