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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0GSHO 1788mat-b.7Hordeum vulgare L. subsp. vulgare Skåne län, SwedenNSGCKERNELS1996DEVELOPED58.98333300, 13.50000000Genetic materialEarly heading mutants at the mat-b locus show a rather drastic increase in earliness (heading 7 days earlier than their parental cultivars) under field cultivation in Sweden. When grown under controlled environmental conditions, mutants are photo- and thermoperiod sensitive and are classified as a pronounced long-day type. Early heading is also associated with decreased culm length, kernels per spike, and grain yield. They are generally more productive in field trials than mat-a (eam8) mutants, but less resistant to lodging, partially due to a modified culm structure. Compared with the original cultivars, they have one internode less per culm, a longer first internode, and a short basal internode. At an early stage of development, mat-b mutants are characterized by pale green color when grown at 15 to 20 degrees C, but they are bright green in color at lower temperatures. Inheritance: Monofactorial recessive. Location is unknown. Previous nomenclature and gene symbolization: Early 7=ea-b7. Early maturity-b=ea-b. Mutational events: mat-b.7, -b.10 (trans), -b.13 in Bonus; mat-b.34, -b.35, -b.38, -b.66 in Bonus, -b.106, -b.108, -b.134, -b.137, -b.145, -b.214, -b.216, -b.237, -b.244, -b.261, -b.279, -b.286, -b.313, -b.337, -b.403 in Foma (CIho 11333), -b.852, -b.853, -b.855, -b.859, -b.861, -b.867, -b.869, -b.870, -b.871, -b.904, -b.920, -b.922 in Bonus, -b.963, -b.977, -b.980, -b.986, -b.991, -b.992, -b.1008 in Sv 79353, -b.1082 in Sv Vg74233, -b.1103 in Sv Semira (NSL 206731), -b.1110, -b.1112, -b.1116 in Sv Frida; mat-b.1401 in Bonus; mat-b.1404, -b.1405 in Bonus. Mutant used for description and seed stocks: mat-b.7 in Bonus (GSHO 1788); mat-b.7 in Bowman (PI 483237)*3 (GSHO 2282).1006279GSHO 1788
1GSHO 1789mat-c.19Hordeum vulgare L. subsp. vulgare Skåne län, SwedenNSGCKERNELS1996DEVELOPED58.98333300, 13.50000000Genetic materialEarly heading mutants at the mat-c locus show a rather drastic increase in earliness (heading 7 days earlier than their parental cultivars) under field cultivation in Sweden. When grown under controlled environmental conditions, mutants are photo- and thermoperiod sensitive and are classified as a pronounced long-day type. Slightly later heading of some mat-c alleles has been reported. Early heading is also associated with decreased culm length, kernels per spike, and grain yield. Mutants have reduced culm length, due to a changed internode number, and the length of the first internode is increased. Spike length and spikelet number are markedly reduced. Inheritance: Monofactorial recessive. Location is unknown. Previous nomenclature and gene symbolization: Early 16=ea-c16. Early maturity-c=ea-c. Mutational events: mat-c.16 in Bonus; mat-c.19, -c.32, -c.93, -c.94 in Bonus, -c.101, -c.122, -c.400 in Foma (CIho 11333), -c.745 in Kristina, -c.758, -c.760, -c.770, -c.865, -c.881, -c.907, -c.910, -c.913, -c.926, -c.943 in Bonus, -c.966 in Sv 79353, -c.1091 in Sv Vg74233, -c.1096 in Sv Frida, -c.1102 in Sv Semira (NSL 206731), -c.1107, -c.1108, -c.1109, -c.1111, -c.1114, -c.1115 in Foma, -c.1118, -c.1120 in Sv Semira. Mutant used for description and seed stocks: mat-c.19 in Bonus (GSHO 1789); mat-c.19 in Bowman (PI 483237)*2 (GSHO 2283).1006294GSHO 1789
2GSHO 1790mat-d.14Hordeum vulgare L. subsp. vulgare Skåne län, SwedenNSGCKERNELS1996DEVELOPED58.98333300, 13.50000000Genetic materialEarly heading mutants at the mat-d locus have a moderate increase in earliness (heading 3 days earlier than their parental culitvars) under field cultivation in Sweden. When grown under controlled environmental conditions, mutants are photo- and thermoperiod sensitive and are classified as a pronounced long-day type. Early heading is also associated with increased culm length and grain yield. The length of the upper internode is increased and spike length is increased. Compared with the drastic maturity mutants at eam8 (mat-a), mat-b, and mat-c loci, mutants at the mat-d locus have an unchanged number of the culm internodes. Inheritance: Monofactorial incomplete dominant. Location is unknown. Previous nomenclature and gene symbolization: Early 14=ea-d14. Early maturity-d=ea-d. Mutational events: mat-d.14 in Bonus; mat-d.124 in Foma (CIho 11333). Mutant used for description and seed stocks: mat-d.14 in Bonus (GSHO 1790).1006296GSHO 1790