International Database for Barley Genes and Barley Genetic Stocks

BGS 255, Xantha seedling 5, xnt5

BGN  26:237
Stock number: BGS 255
Locus name: Xantha seedling 5
Locus symbol: xnt5

Previous nomenclature and gene symbolization:

Yellow seedling (3).
Xantha seedling n = xn (4).


Monofactorial recessive (1).
Located in chromosome 6HL (1, 5); xnt5.e is about 25.0 cM distal from the rob1 (orange lemma 1) locus (5); xnt5.e is about 18.8 cM distal from the lax-b (laxatum-b) locus (2).


Seedlings have a pale yellow color and do not survive beyond the two or three leaf stage (1). The xnt5.e gene must be maintained as a heterozygous stock.

Origin of mutant:

A spontaneous mutant in Nepal (CIho 595) (3).

Mutational events:

xnt5.e (Nepal I, GSHO 43) in Nepal (CIho 595) (3).

Mutant used for description and seed stocks:

xnt5.e (GSHO 43) in Nepal.


1. Kramer, H.H., and B.A. Swomley Blander. 1961. Orienting linkage maps on the chromosomes of barley. Crop Sci. 1:339-342.
2. Larsson, H.E.B. 1985. Linkage studies with genetic markers and some laxatum barley mutants. Hereditas 103:269-279.
3. Robertson, D.W. 1933. Inheritance in barley. Genetics 18:148-158.
4. Robertson, D.W., G.A. Wiebe, and F.R. Immer. 1941. A summary of linkage studies in barley. J. Am. Soc. Agron. 33:47-64.
5. Robertson, D.W., G.A. Wiebe, R.G. Shands, and A. Hagberg. 1965. A summary of linkage studies in cultivated barley, Hordeum species: Supplement III, 1954-1963. Crop Sci. 5:33-43.


C.R. Burnham. 1971. Barley Genet. Newsl. 1:158.


J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:237.