Development of Cytoplasmic–Nuclear Male Sterility, Its Inheritance, and Potential Use in Hybrid Pigeonpea Breeding

    Saxena, K B and Ravikoti, V K and Dalvi, V A and Pandey, L B and Gaddikeri, G (2010) Development of Cytoplasmic–Nuclear Male Sterility, Its Inheritance, and Potential Use in Hybrid Pigeonpea Breeding. Journal of Heredity, 101 (4). pp. 497-503.

    [img] PDF
    Restricted to ICRISAT users only
    Download (302kB) | Request a copy

    Abstract

    Pigeonpea [Cajanus cajan (L.) Millsp.] is a unique food legume because of its partial (20–30%) outcrossing nature, which provides an opportunity to breed commercial hybrids. To achieve this, it is essential to have a stable male-sterility system. This paper reports the selection of a cytoplasmic–nuclear male-sterility (CMS) system derived from an interspecific cross between a wild relative of pigeonpea (Cajanus sericeus Benth. ex. Bak.) and a cultivar. This male-sterility source was used to breed agronomically superior CMS lines in early (ICPA 2068), medium (ICPA 2032), and late (ICPA 2030) maturity durations. Twentythree fertility restorers and 30 male-sterility maintainers were selected to develop genetically diverse hybrid combinations. Histological studies revealed that vacuolation of growing tetrads and persistence of tetrad wall were primary causes of the manifestation of male sterility. Genetic studies showed that 2 dominant genes, of which one had inhibitory gene action, controlled fertility restoration in the hybrids. The experimental hybrids such as TK 030003 and TK 030009 in early, ICPH 2307 and TK 030625 in medium, and TK 030861 and TK 030851 in late maturity groups exhibited 30–88% standard heterosis in multilocation trials.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Subjects: Mandate crops > Pigeonpea
    Depositing User: Library ICRISAT
    Date Deposited: 17 Aug 2011 07:12
    Last Modified: 17 Aug 2011 07:13
    URI: http://oar.icrisat.org/id/eprint/245
    Official URL: http://dx.doi.org/10.1093/jhered/esq028
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: The authors express their sincere thanks to Ankur Seeds, Nagpur; JK Seeds, Secunderabad; and Zuari Seeds, Bangalore, for participating in multilocation trials and providing useful data.
    Links:
    View Statistics

    Actions (login required)

    View Item View Item
    OAR@ICRISAT is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.