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Soybean Genetics Newsletter

Abstract

A new recessive chlorophyll mutant was unexpectedly recovered in an F2 family of A76-518-3 (a homozygous partially male-sterile, msp msp plant) x A76-669 (a 'Clark' isoline homozygous for the chromosome translocation from PI 101,404B). Furthennore, the translocation did not appear in the F2 generation. We are uncertain as to whether the intended cross was unsuccessful and followed by a natural outcross, or if a new chromosomal rearrangement had taken place. The former seems more likely. The F2 population segregated the partial male sterility trait, so we are certain that a cross was involved.

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