International Database for Barley Genes and Barley Genetic Stocks
BGS 380, Shrunken endosperm genetic 4, seg4
Stock number: BGS 380
Locus name: Shrunken endosperm genetic 4
Locus symbol: seg4
Previous nomenclature and gene symbolization:
Shrunken endosperm = se4 (3).
Monofactorial recessive (2).
Located in chromosome 7HL (2); seg4.d is over 34.0 cM from the centromere (4).
Under field conditions in the original mutant, seed size is reduced to about 38% of normal and seed set is about 50% of normal. Stand establishment is poor under field conditions (2, 4). Endosperms of seg4 were characterized by progressively distorted, disorganized growth, but the quantity of endosperm tissue at maturity varied from severely reduced to near normal (1). The stock described in the 1997 revision was incorrect and was in fact a mixture with GSHO 755 (BGS 382, shrunken endosperm xenia 1, sex1), which was identified by Dr. Marion Röder, IPK, Gatersleben.
Origin of mutant:
A spontaneous mutant in Compana (PI 539111) (2).
seg4.d (GSHO 753) in Compana (PI 539111) (2, 3).
Mutant used for description and seed stocks:
seg4.d (GSHO 753) in Compana.
1. Felker, F.C., D.M. Peterson, and O.E. Nelson. 1985. Anatomy of immature grains of eight material effect shrunken endosperm barley mutants. Amer. J. Bot. 72:248-256.
2. Jarvi, A.J. 1970. Shrunken endosperm mutants in barley, Hordeum vulgare. Ph.D. Thesis. Montana State Univ., Bozeman.
3. Jarvi, A.J., and R.F. Eslick. 1971. BGS 380, Normal vs. shrunken endosperm, se4. Barley Genet. Newsl. 1:192.
4. Jarvi, A.J., and R.F. Eslick. 1975. Shrunken endosperm mutants in barley. Crop Sci. 15:363-366.
A.J. Jarvi and R.F. Eslick. 1971. Barley Genet. Newsl. 1:192.
R.F. Eslick. 1976. Barley Genet. Newsl. 6:138.
T. Tsuchiya. 1980. Barley Genet. Newsl. 10:127.
J .D. Franckowiak. 1997. Barley Genet. Newsl. 6:328.
J.D. Franckowiak. 2007. Barley Genet. Newsl. 37:267.