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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0PI 690316B73 Ab10Zea mays L. subsp. mays Iowa, United StatesNC7EAR2019DEVELOPEDPRE 05/01/2019CultivarAbnormal chromosome 10 (also known as K10) was identified by Longley (1937) and extensively characterized at the genetic level by Marcus Rhoades (see Birchler et al., 2003) and at the molecular level by Kelly Dawe and colleagues (Dawe et al., 2018). It is characterized by an extension of the long arm with three small knobs and one large knob. This novel region, the Ab10 haplotype, is bounded on the left by the R1 gene does not recombine with the end of normal chromosome 10. In lines carrying Ab10, knobs are transformed into motile neocentromeres that move poleward in meiosis. When crossed as a female, the Ab10 haplotype is preferentially transmitted to progeny in a process known as meiotic drive.

A line carrying the Ab10 haplotype linked to R1 was obtained from Marcus Rhoades and crossed to B73 6 times and self crossed 5 times (BC6F5) to create the B73-Ab10 inbred. The inbred also contains the C1 gene from the original parent. The genome of this line has been sequenced and assembled (Hufford et al, in preparation).		2091641PI 690316
1PI 566677W.S.T. 92-3Zea mays L. subsp. mexicana (Schrad.) H. H. Iltis Michoacán de Ocampo, MexicoNC7SEED1993COLLECTED11/18/1992Heavy black soil, in unweeded sorghum field, Penjamillo20.16666667, -101.866666671750Wild materialRace Central Plateau. Hybrid swarm. Associated with hybrid corn and sorghum. 2nd/and 3rd backcrosses. Owner Sr. G. Hernandez-Garnica, Rancho El Tejocote. Balanced Regeneration Pack - 750 field counted plants at 10 seeds/plant1461648PI 566677
2PI 566678GW 0188Zea mays L. subsp. mexicana (Schrad.) H. H. Iltis Michoacán de Ocampo, MexicoNC71993COLLECTED11/18/1992Very wet heavy soil, sorghum field W edge of Panindicuro on road to Penjamilio19.96666667, -101.750000001990Wild materialRace Central Plateau. Associated with sorghum. Balanced Regeneration Pack - 400 field counted plants at 3 to 5 seeds/plant1461649PI 566678
3PI 628470Oaxaca 55Zea mays L. subsp. mays Oaxaca, MexicoNC7KERNELS1990COLLECTED01/01/1946Niltepec.16.58333333, -94.60000000100Landrace1061908PI 628470
4PI 550473'B73'Zea mays L. subsp. mays Iowa, United StatesNC7EAR1972DEVELOPEDBreeding materialPlant vigorous. Leaves erect. Pollen production average. Seed smooth dent. Maturity is AES800. This is the accession of B73 that was used for the first complete maize genome sequence. See https://maizegdb.org/assembly details.1445409PI 550473
5Ames 218262422Zea mays L. subsp. parviglumis H. H. Iltis & Doebley Guerrero, MexicoNC7Not Available1992COLLECTED1976El Salado.Wild material1976 shelled and unshelled. Good group isolation.1087213Ames 21826
6Ames 21889BENZ 967Zea mays L. subsp. parviglumis H. H. Iltis & Doebley Jalisco, MexicoNC7Not Available1992COLLECTED11/1983Vicinity of El Rodeo.Wild material1087288Ames 21889