Work

Characterization; Genome Sizes and Morphology of Sex Chromosomes in Hemp (Cannabis sativa L.).

Year: 1998

Type: article

Abstract: A dioecious plant, Cannabis sativa has two sex chromosomes (X and Y). The genome sizes of the diploid female and male plants were determined to be 1636 and 1683 Mbp, respectively, by flow cytometry. By the karyotype analysis, the X and Y chromosomes were found to be submetacentric and subtelocentric, respectively. The Y chromosome had the largest long arm with a satellite in the terminal of its short arm. Conspicuous condensation was specifically observed in the long arm and satellite of the Y chromosome during the prometaphase to metaphase stages. These results indicate that the Y chromosome, especially in its long arm, specifically differentiates in Cannabis sativa and might contribute to the sex determination.

Source: CYTOLOGIA

DOI: 10.1508/cytologia.63.459

Authors: Koichi Sakamoto, Yukio Akiyama, Kiichi Fukui, Hiroshi Kamada, Shinobu Satoh

Institutions: University of Tsukuba, The University of Osaka

Language: English

Topic: Chromosomal and Genetic Variations

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

Open Access status: diamond

Funders: University of Tsukuba, Directorate for Biological Sciences, Japan Society for the Promotion of Science

Award: The analysis of the development of reproductive (male and female) organs