International Database for Barley Genes and Barley Genetic Stocks
BGS 264, Mottled leaf 5, mtt5
Stock number: BGS 264
Locus name: Mottled leaf 5
Locus symbol: mtt5
Previous nomenclature and gene symbolization:
Mottled f = mt,,f (3).
Monofactorial recessive (3).
Located in chromosome 6HL (3); mtt5.f is about 6.4 cM distal from the rob1 (orange lemma 1) locus (3); mtt5.f is associated with SNP markers 2_0936 to 2_0577 (positions 71.39 to 117.10 cM) in 6H bins 06 to 07 of the Bowman backcrossed-derived line BW603 (1), likely in 6H bin 07.
Mottled bands occur on the leaf blade and sheath and are retained until heading (3). The first few seedling leaves often do not show the mottled trait. Plants of Bowman backcross-derived line for mtt5.f, BW603, were less vigorous than Bowman and heading was slightly delayed. BW603 had slightly lower kernel weights and grain yields ranging from 1/2 to 3/4 those of Bowman (2).
Origin of mutant:
An ethyl methanesulfonate induced mutant in Akashinriki (OUJ659, PI 467400) (3).
mtt5.f (OUM022, GSHO 2410) in Akashinriki (OUJ659, PI 467400) (3).
Mutant used for description and seed stocks:
mtt5.f (OUM022, GSHO 2410) in Akashinriki; mtt5.f in Bowman (PI 483237)*6 (GSHO 2084); mtt5.f in Bowman*7 (BW603, NGB 22169).
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 Franckowiak, J.D. (Unpublished).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. Konishi, T. 1978. New linkage data on chromosome 6 of barley. Barley Genet. Newsl. 8:71-72.
T. Konishi and J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:244.
J.D. Franckowiak. 2011. Barley Genet. Newsl. 41:126.