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Crop Science Abstract -

Inheritance of Testa Color Variegation in Peanut1

 

This article in CS

  1. Vol. 19 No. 6, p. 786-788
     
    Received: July 2, 1979


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doi:10.2135/cropsci1979.0011183X001900060010x
  1. W. D. Branch and
  2. Ray O. Hammons2

Abstract

Abstract

The inheritance of testa color variegation was investigated in reciprocal crosses between the variegated (red on white) PI 274191 ✕ solid red PI 371965 peanut (Arachis hypogaea L.) genotypes. F2 phenotypic segregation was consistent with that of a genetic model for incomplete dominance at one locus, designated V. Microscopic examination showed that the V gene inhibited full cellular development of the outer red epidermal layer of the testa in certain regions. This inhibition exposed the underlying white cellular layer resulting in a variegated pattern. The homozygously recessive locus, v, does not prevent the r2 locus from producing phenotypes with solid red color testa.

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