National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Male sterility in vegetables is commercially utilized to develop their hybrids due to cost effective and easy mechanism to produce large-scale hybrid seeds commercially. Different types of male sterility, and three-line and two-line hybrid breeding approaches involving Cytoplasmic male stesility (CMS) and environmental sensitive genic male sterile (GMS) lines, are used for hybrid seed production. In carrot which produces many but small sized flowers, making hand-emasculation tedious and time consuming. Identification of male sterile and fertile counterpart of CMS lines is also not possible at early seedling stage by using test cross methods. Marker assisted selection for male sterile and fertile (maintainer) genes greatly enhance selection of A and B plants in breeding program. So, molecular markers that can distinguish CMS status and fertile plants at an early seedling stage will be valuable tool in carrot breeding including CMS based hybrid seed programs in hybrid seed purity evaluation, selection and management. Keeping these in views, the present study was undertaken to characterize different sources of cytoplasmic male sterile lines and their maintainers. By using available molecular markers closely linked to sterility gene to distinguish our male sterile and fertile lines.
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