International Database for Barley Genes and Barley Genetic Stocks

BGS 388, Desynapsis 9, des9

BGN  44:131 Export to PDF
Stock number: BGS 388
Locus name: Desynapsis 9
Locus symbol: des9

Previous nomenclature and gene symbolization:

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

Inheritance:

Monofactorial recessive (3, 5).
Located in chromosome 7HL (1); des9.n is associated mainly with SNP markers 1_0861 to 2_1363 (positions 183.9 to 198.7 cM) in 7H bins 11 to 12 of the Bowman backcross-derived line BW249 (1).

Description:

The chromosomes are paired during pachytene and undergo desynapsis during diplotene and diakinesis. The average degree of desynapsis is 0.9, ranging from 7 ring bivalents (d = 0) to 5 rod bivalents (d = 5). Ovule fertility is about 90% (4). Compared to Bowman, plants of the Bowman backcross-derived line for des9.n, BW249, were 10% shorter and kernels were 10% lighter. Average seed set for BW249 was about 25%. Grain yields of BW249 were 10 to 40% of those for Bowman (2).
No images

Origin of mutant:

A spontaneous mutant in Betzes (PI 129430) (5).

Mutational events:

des9.n (GSHO 600) in Betzes (PI 129430) (3, 5).

Mutant used for description and seed stocks:

des9.n (GSHO 600) in Betzes; des9.n in Bowman (PI 483237)*5 (BW249, NGB 22074).

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 Franckowiak, J.D. (Unpublished).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 388, Normal vs. desynapsis 9, des9. Barley Genet. Newsl. 4:137.

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. 4:137.

Revised:

J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:336.
J.D. Franckowiak. 2014. Barley Genet. Newsl. 44:131.
 


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