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ISHS Acta Horticulturae 1145: International Symposium on Biotechnology and Other Omics in Vegetable Science

Male sterility applications in Allium

Authors:   E. Cebeci, F. Hancı
Keywords:   Alliums, male sterility, seed production, onion, Allium cepa L., leek, chives, bunching onion
DOI:   10.17660/ActaHortic.2016.1145.8
Abstract:
The subgenus Allium section Allium includes economically important species such as onion (Allium cepa L.), leek (A. ampeloprasum var. porrum L.) and chives (A. schoenoprasum L.). These species have a biennial habit and many cultivars are open pollinated; and high levels of heterozygosity must be maintained. The Allium umbel consists of a few, to hundreds of perfect flowers of per umbel. These flowers are too small for synthetic pollination studies and due to the large-scale emasculation it is not practical so the development of hybrid cultivars is economically feasible using systems of cytoplasmic-genic male sterility (CMS). Male sterile plants, which have not got any fertile pollen, incapable of self-pollination so any seed produced must result from cross-pollination. Allium hybrid production requires the development of male-sterile, maintainer and pollinator lines with good specific combination ability. This review outlines the using male sterility feature in hybrid breeding program for Alliums especially for onions.

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