International Database for Barley Genes and Barley Genetic Stocks

BGS 234, Multiovary 3, mov3

BGN  32:102 Export to PDF
Stock number: BGS 234
Locus name: Multiovary 3
Locus symbol: mov3

Previous nomenclature and gene symbolization:

Multiovary = mo-a (2).

Inheritance:

Monofactorial recessive (2).
Located in chromosome 1H (2); mov3.h is based on linkage drag with the Mla (reaction to Erysiphe graminis a) locus (2).

Description:

Plants with the mov3.h gene have stamens converted into pistils. Stamen conversion ranges from a few stigma hairs at the top of one anther to three normal-looking pistils. Since most supernumerary pistils are non-functional, only one seed develops in each spikelet. In rare cases, the extra pistils form seeds having a very irregular shape and little endosperm. Since stamens with a few stigma hairs can shed pollen, about 17 percent of florets set seed under field conditions. Compared with other multiovary mutants (3, 4), plants with the mov3.h gene have normal or unconverted lodicules (2).
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Origin of mutant:

An ethyl methanesulfonate induced mutant in Akashinriki (OUJ659) (2).

Mutational events:

mov3.h (OUM213) in Akashinriki (OUJ659) (2).

Mutant used for description and seed stocks:

mov3.h (OUM213) in Akashinriki (2).

Notes:

Tazhin mapped his mo5 mutant very close to the nud1 (naked caryopsis 1) locus (5). The two multiovary mutants studied by J. Soule, mo6b and mo7a, have been mapped to chromosomes 3HS and 7H, respectively (1). Since both mo5 and mo7a are about 2 cM from the nud1(naked caryopsis 1) locus, they are likely alleles. Thus, the third locus associated with multiovary trait is assigned the code mov3 and the mutant allele at this locus is assigned the symbol mov3.h as the eighth multiovary mutant reported.

References:

1. Kleinhofs, A. 1999. Coordinator’s report: Integrating barley molecular and morphological/physiological marker maps. Barley Genet. Newsl. 29:58-59.
2. Konishi, T. 1969. An EMS-induced multi-ovary mutant in barley. Barley Newsl. 12:56-57.
3. Soule, J., I. Skodova, D. Kudrna, A. Kilian, and A. Kleinhofs. 1995. Molecular and genetic characterization of barley flower development mutants. Barley Genet. Newsl. 25:76-80.
4. Tazhin, O.T. 1980. The linkage of the genes mo5 and n in barley. Barley Genet. Newsl. 10:69-72.
5. Tazhin, O.T. 1982. Value of crossing-over between linked genes mo5 and n in barley. Barley Genet. Newsl. 12:18-21.

Prepared:

T. Konishi and J.D. Franckowiak. 2002. Barley Genet. Newsl. 32:102.
 


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