Cucurbit Genetics Cooperative Report 11:96-103 (article 42) 1988
Lists of the known genes for the Cucurbitaceae have been published previously in 3 installments (4, 5, 25), and complete, updated gene lists have recently been published for cucumber (CGC 8:86-96), muskmelon (CGC 9:111-120) and watermelon (CGC 10:106-110). In the interest of updating and collecting information on the genetics of Cucurbita in one place, the following is a complete list of known genes. We hope to continue this practice and pubolish a complete list for the Cucurbita spp. every four years.
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Gene Symbol |
Character |
Species |
Reference |
|
Preferred |
Synonym |
|||
a | androecious. Produces only male flowers | pepo | 19 | |
Aat-mb | Aspartate aminotransferase-microbody isozume | maxima x ecuadorensis | 42 | |
Aat-m | (Aat-m1) | Aspartate aminotransferase mitochondria isozyme-1 | maxima x ecuadorensis | 42 |
Aat-m2 | Aspartate aminotransferase mitochondria isozyme-2 | maxima x ecuadorensis | 42 | |
Aat-p2 | Aspartate aminotransferase plastid isozyme-2 | maxima x ecuadorensis | 42 | |
Acp | Acp-1 | Acid phosphatase isozyme-1 | maxima x ecuadorensis | 42 |
Acp-2 | Acid phosphatase isozyme-2 | maxima x ecuadorensis | 42 | |
Aldo-p | Aldolase – plastid isozyme | maxima x ecuadorensis | 41 | |
B | Bicolor fruit. Precocious yellow fruit pigmentation; modified by Ses-B | pepo | 34,35 | |
bi | bitter fruit. High cucurbitacin content in fruit | pepo | 2,15,43 | |
bl | blue fruit color. Incompletely recessive to green | maxima | 16 | |
Bu | bush habit.. Short internodes; dominant to vine habit in young plant stage but recessive at maturity. | pepo maxima | 7,33,38 | |
cr | cream corolla. Cream to nearly white petals for cr/cr, yellow for cr/+, and orange for +/+; derived from C okeechobeensis | moschata | 27 | |
cu | cucurbitacin content. Reduced cucurbitacin content | pepo | 32 | |
D | Dark green stem. Dominant to light green stem | pepo | 14 | |
Di | Disc fruit shape. Dominant to spherical | pepo | 37 | |
Est | Esterase isozyme | maxima x ecuadorensis | 40 | |
Fr | Fruit fly (Dacus cucurbitae) resistance | maxima | 22 | |
G | (a,m) | Gynoecious sex expression | foetidissima | 8,13 |
Gal | (Gal-1) | β –Galactosidase isozyme-1 | maxima x ecadorensis | 42 |
Gal-2 | β –Galactosidase isozyme-2 | maxima x ecuadorensis | 42 | |
Gb | Green band on inner side of base of petal; dominant to no band | pepo | 9 | |
gc | green corolla.. Green, leaf-like petals | pepo | 39 | |
Got | (Got-1) | Glutamine-oxaloacetate isozyme-1 | maxima x ecuadorensis | 42 |
Got-2 | Glutamine-oxaloacetate isozyme-2 | maxima x ecuadorensis | 42 | |
GpI-c | (Gpi-c1) | Glucosephosphate isomerase cytosolic isozyme-1 | maxima x ecuadorensis | 42 |
Gpi-c2 | Glucosephosphate isomerase cytosolic enzyme-2 | maxima x ecuadorensis | 42 | |
Gr | (G) | Green rind. dominant to buff skin of mature fruit | moschata | 26 |
I-T | Inhibitor of the T gene for trifluralin resistance | moschata | 1 | |
Idh | (Idh-1) | Isocitrate dehydrogenase isozyme-1 | pepo | 6,18 |
Idh-2 | Isocitate dehydrogenase isozyme-2 | pepo | 6,18 | |
Idh-3 | Isocitrate dehydrogenase isozyme-3 | pepo | 6,18 | |
l | (c) | light fruit color. Uniform light intensity of fruit pigmentation; modified by St | pepo | 14,23,34 |
1-2 | light pigmentation of fruit – 2 | pepo | 23 | |
Lap | Leucine ajinopeptidase isozyme | maxima x ecuadorensis | 40 | |
lo | (l) | lobed leaves | maxima | 10 |
lt | leafy tendril. Tendrils with laminae | pepo | 29 | |
ly | light yellow corolla. Recessive orange yellow | pepo | 29 | |
M | Mottled leaves. Silver gray areas in axils of leaf veins | pepo maxima moschata | 3,28,31 | |
Mdh-m | (Mdh-ml) | Malate dehydrogenase mitochondria isozyme-1 | maxima x ecuadorensis | 42 |
mDH-m2 | Malate dehydrogenase mitochondria Isozyme-2 | maxima x ecuadorensis | 42 | |
Mdh-c2 | Malate dehydrogenase cytosoloic isozyme-2 | maxima x ecuadorensis | 42 | |
ms-1 | (ms1 ) | male sterile-1. Male flowers abort before anthesis | pepo | 12 |
ms-2 | (ms2 ) | male sterile-2. Male flowers abort | pepo | 12 |
n | naked seeds. Lacking a lignified seed coat | pepo | 15,30 | |
Per | (Per-1) | Peroxidase isozyme-1 | maxima x ecuadorensis | 42 |
Per-3 | Peroxidase isozyme-3 | maxima x ecuadorensis | 42 | |
Pgi | (Pgi-1) | Phosphoglucase isomerase isozyme-1 | pepo | 6,18 |
pgi-2 | Phosphoglucase isomerase isozyme-2 | pepo | 6,18 | |
Pgi-3 | Phosphoglucase isomerase isoyme-3 | pepo | 6,18 | |
Pgm-c2 | Phosphoglucomutase cytosolic isozyme-2 | maxima x ecuadorensis | 42 | |
Pgm-p | Phosphoglucomutase plastid isozyme | maxima x ecuadorensis | 42 | |
Pm | Powdery mildew-resistance. Resistance to Sphaerotheca fuliginea | lundelliana | 24 | |
r | recessive white, White fruit color | pepo | 14 | |
Rd | Red skin. Red external fruit color; dominant to green, white, yellow and gray | maxima | 20 | |
ro | rosette leaf. Lower lobes of leaves slightly spiraled | pepo | 21 | |
s | sterile. Male flowers small, without pollen; female flower sterile | maxima | 17 | |
Ses-B | Selective suppression of gene B | pepo | 36 | |
Skdh | Shikimate dehydrogenase isozyme | maxima x ecuadorensis | 42 | |
Sod | (Sod-1) | Superoxisw dismutase isozyme-1 | maxima x ecuadorensis | 42 |
St | (1st ) | Striped fruit. Longitudinal stripes on fruit, conspicuous if 1 but inconspicuous if 1+ | pepo | 28 |
T | Trifluralin resistance. Dominant to susceptibility to the herbicide; modified by I-T | moschata | 1 | |
Tpi-c2 | Triosephosphatase isomerase cytosolic isozyme-2 | maxima x ecuadorensis | 42 | |
Tpi-p2 | Triosephosphatase isomerase plastid isozyme-2 | maxima x ecuadorensis | 42 | |
V | virescent. Yellow-green young leaves | maxima | 11 | |
W | White fruit. Dominant to green mature fruit, partially epistatic to Y | pepo | 38 | |
Wf | White flesh. Dominant to cream flesh color | pepo | 38 | |
Wt | Warty fruit. Dominant to smooth | pepo | 38 | |
Y | Yellow fruit color. Dominant to green | pepo | 38 | |
Ygp | Yellow-green placenta. Dominant to yellow placental color | pepo | 9 | |
ys | yellow seedling. Lacking chlorophyll; lethal | pepo | 21 |
It is hoped that scientists will consult the above list as well as the rules of gene nomenclature for the Cucurbitaceae (5, 25) before choosing a gene name and symbol. Thus, inadvertent duplication of gene names and symbols will be prevented. The rules of gene nomenclature were adopted in order to provide guidelines for the naming and symbolizing genes previously reported and those which will be reported in the future. Scientists are urged to contact members of the Gene List Committee regarding questions in interpreting the nomenclature rules and in naming and symbolizing new genes.
Gene List Committee:
Cucumber – Todd C. Wehner
Muskmelon – M. Pitrat
Watermelon -W.R. Henderson
Cucurbita spp. – R.W. Robinson
Other Genera: – R.W. Robinson
Literature Cited
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