Inheritance of adherent seedling leaves in Coix

Adherence of seedling leaves in both C. aquatica (2n=10) and C. gigantea (2n=20) is governed by a single recessive gene designated as adh. The character is clearly seen at the 2-4 leaf stage. After 4-6 weeks, the adherence is resolved and the subsequent growth is normal. The heterozygous plants are phenotypically normal. All the 14 F1 interspecific hybrids (2n=15), between C. aquatica and C. gigantea, involving mutant parent plants, also showed adherent leaves in seedlings: indicating that genes controlling this character in the two species are allelic.

Panuganti N. Rao


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