International Database for Barley Genes and Barley Genetic Stocks
BGS 228, Subcrown internode length 1, Sil1
Stock number: BGS 228
Locus name: Subcrown internode length 1
Locus symbol: Sil1
Previous nomenclature and gene symbolization:
Subcrown internode = Sil (1).
Inheritance:
Monofactorial incomplete dominant (1).
Located in chromosome 1H (4); Sil1.a is associated with the sls1 (small lateral spikelet 1) locus based on linkage drag (4); Sil1.a is associated with SNP markers 1_0259 to 1_0890 (positions 70.78 to 110.10 cM) in chromosome 1H bins 08 to 09 in the centromeric region of the Bowman backcross-derived line BW852 (2).
Located in chromosome 1H (4); Sil1.a is associated with the sls1 (small lateral spikelet 1) locus based on linkage drag (4); Sil1.a is associated with SNP markers 1_0259 to 1_0890 (positions 70.78 to 110.10 cM) in chromosome 1H bins 08 to 09 in the centromeric region of the Bowman backcross-derived line BW852 (2).
Description:
Plants have relatively short subcrown internodes, 0.0 to 1.0 cm, when planted 9 cm deep in vermiculite. Planting depth and subcrown internode length determine the position of the crown in relation to the soil surface (1). Plants with a deeper crown placement show higher levels of winter survival (5). In generating the Bowman backcross-derived line for Sil1.a (BW852), the Sil1 gene showed a dominant inheritance pattern. No other morphological effects for the Sil1.a gene were noted in Bowman backcross-derived line BW852 (3). When planted under cool fall conditions, short subcrown internodes are observed in many barley cultivars (3).
 root length to the right compared with normal Bowman'))
Origin of mutant:
Natural occurrence in NE 62203 (CIho 15542, GSHO 1604), a selection of unknown origin (1).
Mutational events:
Sil1.a in winter six-rowed barley NE 62203 (CIho 15542, GSHO 1604) (1).
Mutant used for description and seed stocks:
Sil1.a in NE 62203 (GSHO 1604); Sil1.a in Bowman (PI 483237, NGB 22812)*5 (GSHO 2032); Sil1.a in Bowman*7 (BW852, NGB 22289).
References:
1. Dofing, S.M., and J.W. Schmidt. 1984. Inheritance of subcrown internode length in a winter barley cross. Crop Sci. 24:692-694.
2. 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. 2010. Genetic dissection of barley morphology and development. Plant Physiol. 155:617-627.
3. Franckowiak, J.D. (Unpublished).
4. Franckowiak, J.D. 1995. Notes on linkage drag in Bowman backcross derived lines of spring barley. Barley Genet. Newsl. 24:63-70.
5. Kail, R.M., B.J. Kalp, and K.E. Bohenenblust. 1972. Influence of temperature on crown depth development of winter barley. Crop Sci. 12:872-874.
2. 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. 2010. Genetic dissection of barley morphology and development. Plant Physiol. 155:617-627.
3. Franckowiak, J.D. (Unpublished).
4. Franckowiak, J.D. 1995. Notes on linkage drag in Bowman backcross derived lines of spring barley. Barley Genet. Newsl. 24:63-70.
5. Kail, R.M., B.J. Kalp, and K.E. Bohenenblust. 1972. Influence of temperature on crown depth development of winter barley. Crop Sci. 12:872-874.
Prepared:
J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:226.
Revised:
J.D. Franckowiak. 2010. Barley Genet. Newsl. 40:79.
J.D. Franckowiak. 2018. Barley Genet. Newsl. 48:112.
J.D. Franckowiak. 2018. Barley Genet. Newsl. 48:112.
