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A phenotypic, fertility, and cytological study of backcross derivatives of the pentaploid hybrids of Vaccinium australe Small X Vaccinium ashei Reade


, : A phenotypic, fertility, and cytological study of backcross derivatives of the pentaploid hybrids of Vaccinium australe Small X Vaccinium ashei Reade. Dissertation Abstracts International, B Sciences and Engineering 45(3): 776B

From a study of 3 fruit and 3 leaf traits, it was determined that 57.9% of a total of 630 BC1 seedlings expressed introgression of V. ashei into V. australe. The BC1 population consisted of 93.2% aneuploids and 83.8% multiple aneuploids. Chromosome numbers ranged from tetraploid to pentaploid, with an average of 2n = 52.6. In a crossability study, one euploid and 5 multiple aneuploids of the BC1 population were self-pollinated, intercrossed and backcrossed to V. australe Bluecrop.

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