Evidence that genes from the male parent may influence the morphology of potato dihaploids

Autor:	S. N. R. Barr, S. A. Clulow, Joel Allainguillaume, Mike J. Wilkinson
Rok vydání:	1997
Předmět:	Genetics Morphology (linguistics) biology food and beverages General Medicine biology.organism_classification Solanum tuberosum Genetic marker Botany Plant biochemistry Microsatellite Statistical analysis Agronomy and Crop Science Gene Solanaceae Biotechnology
Zdroj:	Theoretical and Applied Genetics. 94:241-248
ISSN:	1432-2242 0040-5752
DOI:	10.1007/s001220050406
Popis:	A number of recent studies have provided evidence that potato dihaploids (S. tuberosum) contain and express DNA from the male (dihaploid inducer) parent, S. phureja. The importance of this for breeding programmes that use dihaploid potatoes is to some extent dependent upon whether the S. phureja DNA influences dihaploid morphology. In the present study, 21 characters were used to compare the morphology of six dihaploids with those of their parents: S. tuberosum (cvs `Pentland Dell' and `Pentland Crown') and S. phureja (IVP48). Characteristics of S. phureja were found in all of the dihaploids examined. In principal component analyses, dihaploids formed intermediate groupings positioned between those of the parents, although much closer to S. tuberosum. It is concluded there is evidence that DNA originating from the dihaploid inducer can affect the morphology of potato dihaploids. Implications of the findings are discussed.
Databáze:	OpenAIRE
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