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expand all sections collapse all sections  Zea mays subsp. mays Gene "hcf6"
ID 61
Name hcf6 (GENE SYMBOL)
Synonyms (3)
GRAMENE GENEGR:0200251
Type Gene
Species Zea mays subsp. mays (Maize) [ GR_tax:014546 ]
Germplasm
Description Missing cytochrome bf complex; green seedling. Like hcf2, except not deficient
in plastoquinone (Leto and Miles 1977; Miles 1980, 1982; Metz et al. 1983), and
slightly yellow-green seedling. TB-1Sb and TB-2L-1S uncover (Miles et al. 1985).
Not linked to sr1 or to zb4 (3-point crosses, Polacco M. unpublished), 1S
location may need to be reevaluated. Has an "extra" 31 kD thylakoid polypeptide
which crossreacts with antisera to the 31 kD polypeptide of chilled plants (D.
Hayden); this is an unprocessed LHCII polypeptide. Normal PSII electron
transport, normal ATP synthesis, no C02 fixation (Miles and Metz 1985). Not
allelic to hcf2 (Leto and Miles 1979). Blocked in phosphorylation of the
chlorophyll a/b light harvesting complex II; believed to be a direct consequence
of the cytb6/f deficiency (Bennett et al. 1988; Coughlan 1988). Little effect on
mRNA levels or pattern (Kobayashi and Miles 1987). Classification: very good hcf
trait; fair reduced leaf chlorophyll seedling lethal at 3- to 4-leaf stage.
(Polacco). Not allelic to hcf2 or hcf38; probably allelic with pet3 (Barkan et
al., MNL 68:41.2). Genetic 2005 1 coordinates determined from these
recombination and map data: hcf6 TB-1Sb(1); see MaizeGDB ID:104702. This gene
was originally curated in MaizeGDB Database and the map position was displayed
on the maize bins map if feasible.
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