NEAR-ISOGENIC LINES OF INBRED Hi27
Hawaii Foundation Seeds
The following near-isogenic lines (NILs) were bred in Hawaii and based on tropical inbred
Hi27. Each represents six or more backcrosses. Hi27 is known or believed to be of the following
genotype:
A1 A2 b1 Bz1 C1-I C2 Mv1 P1-ww Pl1 R1-r Pr1 Y1
Hi27 is a tropical yellow flint inbred that carries the anthocyanin-inhibitory allele C1-I. It was
selfed out of an Indian sib-line CM104 and converted in Hawaii to gene Mv1 (3L-78) for resistance to
maize mosaic virus. CM104 was bred in India under the Rockefeller Cooperative Maize program
(1955) out of Amarillo Theobromina, a Colombian line of Cuban Flint origin (pedigree: A Theo 21
(B)-6#-15-7#). Hi27 has wide tropical use and adaptability and is highly tolerant of most common
diseases and insects. It is registered (PI 593009) and stored by USDA in Ft. Collins as PL-183 (see
CropSci. 37:631-2, 1997
ALL FOLLOWING NILS ARE OF Hi27.
a1^Hi27, a2 (see bt1a2), ad1^Hi27 (1:1), ae^Hi27, ae1 (wx flta)^Hi27, B1^Hi27, B1 C1^Hi27, B1 (C1 bz)^Hi27,
ba1^Hi27 (3:1), bd1^Hi27 (3:1), Bf1^Hi27, Bif1^Hi27 (1:1), (bk2 wx flta)^Hi27, blo1^Hi27, bm1^Hi27, (bm1 ae1)^Hi27,
bm2^Hi27, bm2 gt1^Hi27, bm3^Hi27, bm4^Hi27, br1^Hi27, (br1 f1)^Hi27, br2^Hi27, br3 (cf. bv1), Brta^Hi27. (Brta ,
4)^Hi27, bst^Hi27, (bt1 a2)^Hi27, bt1 a2)(sh2 a1)^Hi27, (bt1 a2)wx^Hi27 , (bt1 a2)y^Hi27, bt1A^Hi27, bv1-bm3^Hi27,
(bz1 C1 flta1)^Hi27, C1^Hi27 , (C1 sh1 bz1 wx1)^Hi27, c2 (cf. o1 c2), Cg1^Hi27 (1:1), Ch1^Hi27, cr1^Hi27, ct1^Hi27,
d1^Hi27, dbcb^Hi27, (dbcb p-rw)^Hi27 (dbcb p-vv)^Hi27, (Dt1 a1)^Hi27, du1^Hi27, el1 p-wr^Hi27 (3:1), et1^Hi27 (3:1),
et1 C1^Hi27 (3:1), f1^Hi27, (fl1 Brta1 v4)^Hi27, (fl1 Brta1 v4) y^Hi27, fl2^Hi27, (flta wx1)^Hi27, g1^Hi27, (g1 li1)^Hi27,
gl1^Hi27, (gl2 lg1)^Hi27, gs1^Hi27, gt1^Hi27 , h1^Hi27, ij1^Hi27, in1 C1^Hi27, j1^Hi27 , j2^Hi27, Kn1 p-wr^Hi27, (la1 ,
l2)^Hi27, (la1 fl2 su1)^Hi27, lc2^Hi27, lc2 P1-rr^Hi27, lc2 P1-rw^Hi27, lfl1^Hi27, lg1^Hi27, lg2^Hi27, Lg3^Hi27, (li1 ,
u1)^Hi27, lw1^Hi27 (3:1), ms6 (cf. po1), (ms8 j1)^Hi27 (1:1), ms10^Hi27 (1:1), na1^Hi27 (3:1), na2^Hi27 (3:1), (nl3 P1-,
w)^Hi27, (o1 c2)^Hi27, o2^Hi27, o2^Hi27 (Tuxp), o5^Hi27, Og1^Hi27, Og1 B1^Hi27, os1^Hi27 (also 3:1), oy1^Hi27 ,
3:1), P-vv1^Hi27, P-wr1^Hi27, P-rr1^Hi27, pm1^Hi27 , Pn1^Hi27 (1:1), po1^Hi27 (1:1) (=ms6), pr1 C1^Hi27, py1^Hi27 ,
1:1) (= tan), R1 C1^Hi27, R1 C1^Hi27 (B1?), R1-nj C^Hi27, ra2^Hi27 , rf4^Hi27 (Ccyto), Rf4^Hi27 (Ccyto), Rg1^Hi27 ,
1:1), (sh1 wx flta)^Hi27, (sh2 a1)^Hi27, (sh2 a1)sl1^Hi27, (sh2 a1)wx^Hi27, (sh2 s1)y^Hi27, si1^Hi27 (1:1), (sk1 ,
l1)^Hi27 (1:1), sky1 lfl1^Hi27, sl1^Hi27, sr1^Hi27, su1^Hi27, su1 wx^Hi27, su1 lfl1^Hi27 (Tu JLB), tan1 (cf. py),
Tlr1^Hi27 (1:2:1), Tp1^Hi27 (1:1, 3:1), ts2^Hi27 (3:1), ts4^Hi27 (3:1), Ts5^Hi27 (1:1, 3:1), Ts6^Hi27 (1:1), Tu1^Hi27 ,
1:1, 3:1), v4^Hi27, (v4 fl1)^Hi27 , (v5 o2)^Hi27, Vg1^Hi27 (1:1, 3:1), vp5^Hi25 (3:1), ws3^Hi27,(wx1 flta)^Hi27, (wx1 ,
lta) y^Hi27, y1^Hi27, y1^Hi27 (Guam), y8^Hi27, yg2^Hi27, zb232^Hi27, zb235^Hi27, zbc^Hi27, zn1^Hi27 , zncm^Hi27,
Tr.4-6b^Hi27 (1:1), Tr.4-10f^Hi27 (1:1) , Tr.9-10a^Hi27 (1:1)
Following symbols are for genes or alleles identified in Hawaii:
blo1, brta1, bst1, dbcb1, flta1, lc2, lfl1, nl3, sky, zb232, zb235, zbc, zncm
Bracketed loci are linked
Illustrated above are some of the NILs affecting ear type: Upper left, B1 (purple plant), upper right, C1
segregating (aleurone color); lower left, alleles of P locus (pericarp/cob color), lower right Pn
(papyriferous glumes, like the most ancient corns).
Illustrated below are some of Hi27’s NILs affecting tassel type. Note: ALL are genetically identical
except for the one gene.
Tassel-seed 6 (Ts6/Ts6)
Left:
Brta (branched tassel)
Adherent (ad)
Right: lg2 (liguleless)