Matryoshka: A new floral mutant in wild potato

A population of the wild potato S. stoloniferum form fendleri (PI 660270) was collected as botanical seeds in the Santa Rita Mountains near Green Valley, Arizona, USA in fall 2010. Original seeds planted for multiplication at the genebank produced two plants with extra whorls of petals, sometimes fu...

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Bibliographic Details
Published in:American journal of potato research 2014-10, Vol.91 (5), p.500-503
Main Authors: Bamberg, John, Suriano, Jana, del Rio, Alfonso, Cooper, W. Rodney, Abad, Jorge, Fernandez, Charles
Format: Article
Language:English
Subjects:
Agriculture
anthers
Biomedical and Life Sciences
carpels
corolla
crossing
dominance (genetics)
female fertility
Fertility
flowering
Flowers
Fruit crops
Fruits
germplasm conservation
Larvae
Life Sciences
male fertility
Mountains
Mutants
Plant Breeding/Biotechnology
Plant Genetics and Genomics
plant morphology
Plant Pathology
Plant Sciences
planting
Potatoes
Seeds
Solanum stoloniferum
Tomatoes
Vegetables
wild relatives
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Summary:A population of the wild potato S. stoloniferum form fendleri (PI 660270) was collected as botanical seeds in the Santa Rita Mountains near Green Valley, Arizona, USA in fall 2010. Original seeds planted for multiplication at the genebank produced two plants with extra whorls of petals, sometimes fused with anthers, and, most remarkably, successive whorls of petals, anthers and carpels nested inside the primary carpel. This mutant was named matryoshka after the similarly nested Russian dolls. Floral morphology of mutants varies. It can have nearly normal male and female fertility in some individuals. Crossing studies indicate that the mutant form is dominant. Expression of the mutant may vary over the flowering cycle of the plant, with earlier flowers appearing mutant and later flowers appearing normal. Tests for pathogens were negative. Flower development mutants are of interest considering the potential for manipulating interspecific crossability, apomixis, and virus elimination in potato, and their usefulness may be extended to the important closely-related fruit crops of tomato, pepper, and eggplant. Matryoshka could also be useful in studies of potato adaptation in the wild: For example, seedless matryoshka fruit may serve as decoys to suppress the seed-eating larvae of Odenicarena fruit flies and Cecidomyiid gall flies which are especially prevalent in the area where the mutant originates.
ISSN:1099-209X
1874-9380
DOI:10.1007/s12230-014-9380-1