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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0GSHO 1606Xnt1.aHordeum vulgare L. subsp. vulgare JapanNSGCKERNELS1996DEVELOPEDGenetic materialThe original M2 line segregated for xantha, chlorina, and green seedlings, but only the last two classes survived to maturity. Chlorina plants have a slightly yellow-green color until near maturity. Crosses to the chlorina plant produced chlorina and green F1 plants in 1:1 ratio, and in the F2 progeny of chlorina plants xantha, chlorina, and green plants appeared in a 1:2:1 ratio. Color differences between normal and heterozygous plants were observed only prior to heading for the Xnt1.a2 mutant. Mutants at the Xnt1 locus must be maintained as heterozygous stocks. Inheritance: Monofactorial incomplete dominant. Located in chromosome 7HL [1L], over 35.9 cM distal from the lks2 (short awn 2) locus. Previous nomenclature and gene symbolization: Xantha a = Xa. Mutational events: Xnt1.a in the hybrid Akashinriki X linkage tester 191 (OUM215); Xnt1.a2 in the translocation T d; Xnt1.a3 in MC20. Mutant used for description and seed stocks: Xnt1.a in the hybrid Akashinriki X linkage tester 191 (GSHO 1606); Xnt1.a in Bowman (PI 483237)*7(GSHO 1862).1489961GSHO 1606