학술논문
Embryo lethality in wheat × rye hybrids-mode of inheritance and the identification of a complementary gene in wheat.
Document Type
Article
Author
Source
Subject
*WHEAT
*EMBRYOLOGY
*RYE
*CELL nuclei
*PLANT diseases
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Language
ISSN
0014-2336
Abstract
Crosses between hexaploid wheat and rye can only succeed when pre- and post-zygotic barriers have been overcome. A rye gene determining embryo lethality ( Eml- R1), which is involved in post-zygotic isolation, has been mapped to chromosome 6R. In the present paper the mode of inheritance of Eml- R1 was studied by employing a wheat/rye chromosome 6R addition line. We show that Eml- R1 exists in at least two alternative forms, with the mutant allele Eml- R1b being dominant with respect to wild-type Eml- R1a. Furthermore, we have exploited nulli-tetrasomic lines of wheat to detect a complementary wheat gene present on chromosome 6A. This gene has been designated Eml- A1. [ABSTRACT FROM AUTHOR]