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Journal of Heredity Advance Access published online on May 20, 2008
Journal of Heredity, doi:10.1093/jhered/esn034
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© The American Genetic Association. 2008. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org.

Brief Communication

Fertility Restoration in Cytoplasmic-Nuclear Male-Sterile Lines Derived from 3 Wild Relatives of Pigeonpea

Vijay A. Dalvi, Kul B. Saxena, and Indradas A. Madrap

From the International Crops Research Institute for the Semi-Arid Tropics, Patancheru 502 324, Andhra Pradesh, India (Dalvi and Saxena); and the Marathwada Agricultural University, Parbhani 431 402, Maharashtra, India (Madrap); Vijay Dalvi is now at the Guangxi Crop Genetic Improvement and Biotechnology Lab, Guangxi Academy of Agricultural Sciences, 174 East Daxue Road, Nanning 530007, People's Republic of China

Address correspondence to Vijay A. Dalvi at the above address, or e-mail: vijay_dalvi79{at}rediffmail.com.

Three cytoplasmic-nuclear male-sterile (CMS) lines, one each derived from Cajanus sericeus (A1 cytoplasm), Cajanus scarabaeoides (A2 cytoplasm), and Cajanus cajanifolius (A4 cytoplasm), were crossed to 7 pigeonpea (Cajanus cajan (L.) Millsp.) cultivars in a line x tester mating scheme to study the fertility restoration of the CMS lines. Twenty-one F1 hybrid combinations were planted in unreplicated 3-row plots in 3 environments. There was no effect of environments on the expression of fertility restoration. Pigeonpea cultivar ICPL 129-3 restored fertility in A1 cytoplasm and maintained male sterility in the other 2 (A2 and A4) cytoplasms. Among crosses involving CMS line (of A4 cytoplasm) ICPA 2039 one hybrid combination was male-sterile and another male fertile. The remaining 5 combinations segregated for male-fertility (66–84% fertility restoration). Such testers can easily be purified for use in hybrid breeding programs by selfing and single-plant selection for 2–3 generations.

Corresponding Editor: Reid Palmer

Received January 3, 2008
Accepted April 14, 2008


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