International Database for Barley Genes and Barley Genetic Stocks
BGS 170, Light green 3, lgn3
Stock number: BGS 170
Locus name: Light green 3
Locus symbol: lgn3
Previous nomenclature and gene symbolization:
Light green 7 = lg7 (5).
Light green 3 = lg3, the lg3 stock studied by Hanson and Kramer (4) may not be the same as the lg3 gene in the GSHO 171 stock (2).
Light green 3 = lg3, the lg3 stock studied by Hanson and Kramer (4) may not be the same as the lg3 gene in the GSHO 171 stock (2).
Inheritance:
Monofactorial recessive (3, 5).
Located in chromosome 1HL (1); lgn3.c from GSHO 171 in the Bowman backcross-derived line BW480 is associated with SNP markers 1_0552 to 2_0229 (positions 88.33 to 106.61 cM) in 4H bins 08 to 10 (1). Since lgn3 locus was previously mapped in chromosome 4HL (3, 4, 6, 7) [over 10.5 cM distal from the Kap1 (Hooded lemma 1) locus (4)], the donor stock for BW480 may have been incorrect (2).
Located in chromosome 1HL (1); lgn3.c from GSHO 171 in the Bowman backcross-derived line BW480 is associated with SNP markers 1_0552 to 2_0229 (positions 88.33 to 106.61 cM) in 4H bins 08 to 10 (1). Since lgn3 locus was previously mapped in chromosome 4HL (3, 4, 6, 7) [over 10.5 cM distal from the Kap1 (Hooded lemma 1) locus (4)], the donor stock for BW480 may have been incorrect (2).
Description:
Seedlings have light or pale green color (5). The pale green color persists until near maturity, and plants are very weak (5) or non-viable in the field (2). Plants can be grown to maturity in greenhouses (6). Plants of the Bowman backcross-derived line for lgn3.c, BW480, showed variable responses to being grown under field conditions. In general, plants headed 4 to 5 days later, they were 10 to 20% shorter than Bowman, and rachis internodes were slightly shorter. Kernel weights of BW480 were 30 to 40% lower (36 vs. 57 mg) and grain yields ranged from none to 1/3 of those for Bowman (2).
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Origin of mutant:
A spontaneous mutant in an unknown cultivar (5, 6).
Mutational events:
lgn3.c (No 150, GSHO 171) in an unknown cultivar (5); lgn3.g (lg7) (No 154, GSHO 173) in an unknown cultivar (5).
Mutant used for description and seed stocks:
lgn3.c (GSHO 171) in an unknown cultivar; lgn3.c from an accession obtained from Montana State University and identified as lgn3 in Bowman (PI 483237)*5 (GSHO 2010); lgn3.c in Bowman*7 (BW480, NGB 20708).
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. 2010. Genetic dissection of barley morphology and development. Plant Physiol. 155:617-627.
2. Franckowiak, J.D. (Unpublished).
3. Hanson, W.D. 1952. An interpretation of the observed amount of recombination in interchange heterozygotes in barley. Genetics 37:90-100.
4. Hanson, W.D., and H.H. Kramer. 1949. The genetic analysis of two chromosome interchanges in barley from F2 data. Genetics 34:687-700.
5. Immer, F.R., and M.T. Henderson. 1943. Linkage studies in barley. Genetics 28:419-440.
6. Tsuchiya, T., T. Fachan, and T.E. Haus. 1976. Primary trisomic analysis of lg3 (light green) and f3 (chlorina) in barley. Barley Genet. Newsl. 6:82-84.
7. Tsuchiya, T., and L.B. Hall. 1978. Telotrisomic analysis of four mutant genes in barley. Barley Genet. Newsl. 8:104-107.
2. Franckowiak, J.D. (Unpublished).
3. Hanson, W.D. 1952. An interpretation of the observed amount of recombination in interchange heterozygotes in barley. Genetics 37:90-100.
4. Hanson, W.D., and H.H. Kramer. 1949. The genetic analysis of two chromosome interchanges in barley from F2 data. Genetics 34:687-700.
5. Immer, F.R., and M.T. Henderson. 1943. Linkage studies in barley. Genetics 28:419-440.
6. Tsuchiya, T., T. Fachan, and T.E. Haus. 1976. Primary trisomic analysis of lg3 (light green) and f3 (chlorina) in barley. Barley Genet. Newsl. 6:82-84.
7. Tsuchiya, T., and L.B. Hall. 1978. Telotrisomic analysis of four mutant genes in barley. Barley Genet. Newsl. 8:104-107.
Prepared:
T.E. Haus. 1978. Barley Genet. Newsl. 8:154.
Revised:
J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:195.
J.D. Franckowiak. 2014. Barley Genet. Newsl. 44:103-104.
J.D. Franckowiak. 2014. Barley Genet. Newsl. 44:103-104.
