International Database for Barley Genes and Barley Genetic Stocks

BGS 623, Eligulum-a, eli-a

BGN  48:170 Export to PDF
Stock number: BGS 623
Locus name: Eligulum-a
Locus symbol: eli-a

Previous nomenclature and gene symbolization:

Eligulum-a = lig-a (3.
Eligulum-3 = eli-3 (5).

Inheritance:

Monofactorial recessive (3, 6).
Located in chromosome 2HS (6); eli-a.17 mapped in 2HS 2.2 cM proximal of SNP marker 2_0964 at (position 17.85 cM) (6); eli-a.18 mapped in 2HS 1.6 cM proximal of SNP 3_1284 (19.47 cM) (6); Bowman backcross-derived lines for eli-a.3 (BW295), eli-a.9 (BW296), and eli-a.216 (BW293) retained donor parent markers in this region of 2HS (1).

Description:

Plants do not have ligules in the junction between the sheath and leaf blade, auricles are rudimentary and asymmetrically displaced. Plants are about 2/3 of normal height and have very wide leaves (4, 5). The peduncle is short and spike emergence from the sheath of the flag leaf is poor. Spikes have a compact arrangement of spikelets and are extremely compacted near the tip (2, 4). The culm breaks very easily between the upper and lower halves of the nodes. The Bowman backcross-derived lines have glume awns that are nearly twice as long as those of Bowman, but the lemma awns are about 2/3 of normal (2). The eli-a.17 and eli-a.18 mutants increased tillering of uniculm 2 (cul2) plants (6). ELI-A produce shorter plants with fewer tillers and disrupt the leaf blade-sheath boundary, producing liguleless leaves and reduced secondary cell wall development in stems and leaves. Presence of ELI-A transcripts at the preligule boundary, suggesting that Eli-a contributes to boundary formation between the blade and sheath (6).

Origin of mutant:

An ethylene imine induced mutant in Foma (NGB 14659, CIho 11333) (3, 4).

Mutational events:

eli-a.2 (NGB 115389), eli-a.3 (NGB 115390), -a.7 (NGB 115392), -a.9 (NGB 115393), -a.10 (NGB 115394) in Foma (NGB 14659, CIho 11333) (5); eli-a.11 (NGB 115395), -a.14 (NGB 115397) in Kristina (NGB 14661, NGB 1500); eli-a.15 (NGB 115398), -a.16 (NGB 151399) in Bonus (NGB 14657, PI 189763) (5), eli-a.216 (FN216, GSHO 3647) in Steptoe (CIho 15229) (2, 4). ); eli-a.17 and eli-a.18 are sodium azide induced mutants in a Bowman cul2.b-rob1.a backcross-derived line (BW206, NGB 22034)

Mutant used for description and seed stocks:

eli-a.3 (NGB 115390) in Foma; eli-a.3 in Bowman (PI 483237, NGB 22812)*4 (BW295, NGB 20579); eli-a.9 from Foma in Bowman*2 (BW296, NGB 20580); eli-a.14 from Kristina in Bowman*3 (BW294, NGB 20578); eli-a.216 from Steptoe in Bowman*3 (BW293, NGB20577).

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. Gustafsson, Å., A. Hagberg, U. Lundqvist, and G. Persson. 1969. A proposed system of symbols for the collection of barley mutants at Svalöv. Hereditas 62:409-414.
4. Kleinhofs, A. (Unpublished).
5. Lundqvist, U. (Unpublished).
6. Okagaki, R.J., A. Haaning, H. Bilgic, S. Heinen, A. Druka, M. Bayer, R. Waugh, and G.J. Muehlbauer. 2018. ELIGULUM-A regulates lateral branch and leaf development in barley. Plant Physiol. 176:2750-2760.

NGB number url references to Nordic Baltic Genebankes Information System (GENBIS):

  1. NGB 115389 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 115389)
  2. NGB 115390 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 115390)
  3. NGB 115392 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 115392)
  4. NGB 115393 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 115393)
  5. NGB 115394 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 115394)
  6. NGB 115395 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 115395)
  7. NGB 115397 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 115397)
  8. NGB 115398 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 115398)
  9. NGB 115399 (https://www.nordic-baltic-genebanks.org/gringlobal/accessiondetail?accid=NGB 115399)

Prepared:

U. Lundqvist and J.D. Franckowiak. 2002. Barley Genet. Newsl. 32:126.

Revised:

J.D. Franckowiak and A. Kleinhofs. 2005. Barley Genet. Newsl. 35:192.
U. Lundqvist and J.D. Franckowiak. 2007. Barley Genet. Newsl. 37:290.
U. Lundqvist and J.D. Franckowiak. 2013. Barley Genet. Newsl. 43:164.
U. Lundqvist and J.D. Franckowiak. 2014. Barley Genet. Newsl. 44:199.
J.D. Franckowiak and U. Lundqvist. 2018. Barley Genet. Newsl. 48:170-171.
 


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