International Database for Barley Genes and Barley Genetic Stocks

BGS 393, Desynapsis 14, des14

BGN  44:135 Export to PDF
Stock number: BGS 393
Locus name: Desynapsis 14
Locus symbol: des14

Previous nomenclature and gene symbolization:

Desynapsis u = des,,u (3, 5).

Inheritance:

Monofactorial recessive (3, 5).

Located in chromosome 7H (1); des14.u is associated mainly with SNP markers 1_0838 to 1_0485 (positions 49.53 to 121.90 cM) in 7H bins 04 to 07 of the Bowman backcross-derived line BW235 (1).

Description:

The chromosomes are paired during pachytene and undergo desynapsis during diplotene and diakinesis. The average degree of desynapsis is 4.8, ranging from 7 ring bivalents (d = 0) to 1 rod bivalent plus 12 univalents (d = 13). Lagging chromosomes and micronuclei are observed frequently at telophase I. Ovule fertility is about 35% (4). The selfed seed set of the Bowman backcross-derived line for des14.u, BW235, was 40 to 50% and it yielded about half as much grain as Bowman. Kernels of BW235 averaged 5 to 10% lighter than those of Bowman (2).
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Origin of mutant:

A spontaneous mutant in Betzes (PI 129430) (4).

Mutational events:

des14.u (GSHO 605) in Betzes (PI 129430) (3, 5).

Mutant used for description and seed stocks:

des14.u (GSHO 605) in Betzes; des14.u in Bowman (PI 483237)*6 (BW235, NGB 22062).

References:

1. Druka, A., J. Franckowiak, U. Lundqvist, N. Bonar, J. Alexander, K. Houston, S. Radovic, F. Shahinnia, V. Vendramin, M. Morgante, N. Stein, and R. Waugh. 2011. Genetic dissection of barley morphology and development. Plant Physiol. 155:617-627.

2. Franckowiak, J.D. (Unpublished).

3. Hernandez-Soriano, J.M., and R.T. Ramage. 1973. Coordinator's report: Desynaptic genes. Barley Genet. Newsl. 3:91.

4. Hernandez-Soriano, J.M., and R.T. Ramage. 1974. BGS 393, Normal vs. desynapsis 14, des14. Barley Genet. Newsl. 4:142.

5. Ramage, R.T., and J.M. Hernandez-Soriano. 1972. Desynaptic genes in barley. Barley Genet. Newsl. 2:65-68.

Prepared:

J.M. Hernandez-Soriano and R.T. Ramage. 1974. Barley Genet. Newsl. 4:142.

Revised:

J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:341.

J.D. Franckowiak. 2014. Barley Genet. Newsl. 44:135.
 


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