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ARS Home » Midwest Area » Ames, Iowa » Corn Insects and Crop Genetics Research » Research » Publications at this Location » Publication #101492
Title: CORRELATION OF TEMPERATURE, PHOTOPERIOD AND CELLULAR CHANGES IN ANTHERS OF A CMS SOYBEAN

Author
item SMITH, M - IOWA STATE UNIVERSITY
item HORNER, HARRY - IOWA STATE UNIVERSITY
item Palmer, Reid

Submitted to: International Botanical Congress
Publication Type: Abstract Only
Publication Acceptance Date: 5/13/1999
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: F1 and restored plants, of a cms line from a cross of a Chinese Clycine max wildtype soybean with a Chinese wild annual G. soja, were exposed to temperature and photoperiod regimes to assess the stability of the cms system during flowering and pod set. Anthers of all stages were studied cytologically. Results confirm the environmental stability of the cms system. During microsporogenesis and microgametogensis, anthers with restored fertility showed a constant influx and storage of carbohydrates, while the cms anthers showed a progressive declline in carbohydrates after meiosis. Cytological differences between the cms and normal line were associated with progessive degenerative anatomical changes.