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expand all sections collapse all sections Zea mays subsp. mays gene "v24" (GR:0200555)
Species Zea mays subsp. mays (Maize) [ GR_tax:014546 ]
Accession GR:0200555
Gene Symbol v24
Gene Name virescent24 
Synonyms (6)
E.C. Numbers (0)
Pathway Reactions (0)
Chromosome No. 2
Gene Type Not classified
Has Phenotype not curated
Description Like v1, except not cold-sensitive and developmentally conditional high chlorophyll fluorescence attributable to premature assembly of the light harvesting complexes. First 3 to 4 leaves emerge as white or pale yellow, dependent on genetic background, and green slowly and uniformly from tip down. Similar to v1, except developmentally conditional hcf (high chlorophyll leaf fluorescence), and not cold sensitive. High yield of leaf chlorophyll fluorescence is restricted to early stages of greening and attributable to premature assembly of the major light harvesting complex, LHCII. Thylakoid polypeptide composition of fully greened leaves is normal. Developing v24-424 chloroplasts have normal thylakoid lipid composition (Polacco et al. 1985 Plant Physiol. 77:795-800), elevated thylakoid plastoquinone (M. Polacco, unpublished) and normal levels of a plastid transcript, psbA (Polacco et al. 1987 Dev. Genet. 8:389). In the field and plastic greenhouse, growth is slow, plants are palegreen and seedlings often die unless shaded during 1- to 5-leaf stage. In contrast, in growth chamber or glass greenhouse, 5- to 7-leaf seedlings are visibly similar to normal sibs, both in size and extent of greening; however, the base of emerging leaves after 5-leaf stage is somewhat less green and dramatically hcf. Survivors in the field are small, late maturing, and have tiny ears. Classification is excellent if examined on germination. Viability is poor in field and plastic greenhouse; excellent in growth chamber and glass greenhouse. (M. Polacco). Genetic 2005 2 coordinates determined from these recombination and map data: T1-2(4464) v24; bnlg2077 -9- v24 -9- mmc0191; see MaizeGDB ID:934757. 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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toggle section Map Positions (3)
toggle section Gene Map Positions (3)
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