CYTOPLASMIC MALE STERILITY IN Brasska oleracea INDUCED BY B. napus CYTOPLASM — FEMALE FERTILITY AND RESTORATION OF MALE FERTILITY

1 July 1987

journal article
research article
Published by Canadian Science Publishing in Canadian Journal of Plant Science

Vol. 67 (3) , 891-897
https://doi.org/10.4141/cjps87-126

Abstract

The 37-chromosome F₁ hybrids obtained from the cross between rutabaga (B. napus L. ssp. rapifera (Metzg.) Sinsk) and cabbage (B. oleracea L. ssp. capitata L.) were backcrossed four times using 2x-cabbages as the male recurrent parent. Female fertility improved rapidly in BC₂ progenies whereas male sterility persisted in the B. oleracea type backcross progenies carrying the cytoplasm of B. napus. Male fertility was restored fully when the c genome was reintroduced to the cytoplasm of B. oleracea.Key words: Brassica oleracea, Brassica napus, cabbage, cytoplasmic male sterility

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