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Introgression of self-compatibility from Coffea heterocalyx to the cultivated species Coffea canephora

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Abstract.

Self-compatibility segregation was assessed in two successive backcross progenies originating from an interspecific cross between Coffea canephora (self-incompatible) and Coffea heterocalyx (self-compatible). After self- and cross-pollination, pollen tube behaviour in styles was observed under ultraviolet fluorescence microscopy and fruit-set was determined at harvesting time. Segregation ratios in the two progenies were consistent with monofactorial control of self-compatibility. Self-compatible plants exhibited higher fruit-set than self-incompatible ones in open-pollination conditions. Segregation of AFLP markers was scored in the first backcross progeny. By molecular linkage analysis, the S locus could be mapped to a short linkage group.

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Coulibaly, .I., Noirot, .M., Lorieux, .M. et al. Introgression of self-compatibility from Coffea heterocalyx to the cultivated species Coffea canephora . Theor Appl Genet 105, 994–999 (2002). https://doi.org/10.1007/s00122-002-1008-z

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  • DOI: https://doi.org/10.1007/s00122-002-1008-z

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