BGS 491: laxatum-hf, lax-hf244

Previous nomenclature and symbolization:

laxatum 244, lax 244 (7, 13).
Inheritance:
Partially dominant over normal (14).
Semi-sterile heterozygotes indicating presence of a translocation (14).
Mutant gene probably located in chromosome 7 L (15).
Description:
Spike internodes about 21% longer than normal.
Relatively early maturing plants with narrow, dark-green leaves and long spikes with long, slender grain (13).
Origin of mutant:
1961 after resting Foma seed treated with ethylmethanesulfonate: 0.08% x 24 hours.
Mutational events: (3, 4)
lax-hf232, -hf242, -hf244, -hf251.
Mutant used for description and seed stock:
lax-hf244 in Foma.
References:

3.Ehrenberg, L., Gustafsson, Å. and Lundqvist, U. 1959. Hereditas 45:351-368.

4.Ehrenberg, L., Gustafsson, Å. and Lundqvist, U. 1961. Hereditas 47:257-278.

7.Gustafsson, Å., Hagberg, A., Lundqvist, U. and Persson, G. 1969. Hereditas 62:409-414.

13. Larsson, H.E.B. 1985. Hernditas 103:239-253.

14. Larsson, H.E.B. 1985. Hereditas 103:255-267.

15. Larsson, H.E.B. 1985. Hereditas 103:269-279.

Prepared:

H.E.B. Larsson and U. Lundqvist 1986.

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