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The Journal of Heredity 1979:70(1):13-16
© 1979 The American Genetic Association 70:13-16

research-article

A cytological study of three diploid species of the genus Arachis L.

P. M. RESSLAR, and W. C. GREGORY

The authors are, respectively, graduate research assistant, Department of Crop Science; and professor, Departments of Crop Science and Genetics, North Carolina State University, Raleigh, NC 27650. Paper no. 5719 of the Journal series of the North Carolina Agricultural Research Service, Raleigh, NC 27650

Abstract

Metaphase I of pollen mother cells of Arachis villosa Bentham, A. cardenasii Krap. et Greg. nom. nud., A. duranensis Krap. et Greg. nom. nud., and their hybrids were studied. The most frequent association found was 10 bivalents. Cells with 9 bivalents and 2 univalents were noted, but the frequency of this association was below 9 percent in all cases. It is concluded that these three species have a common genome. The designation of this genome as the A genome is proposed.


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