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@@Cucumber (Cucumis sativus 2n=2x=14,) is well known as fruity vegetable all over
the world since its simply growth and
wildly
adaptation. Fruit is usually eaten
as either
pickle, slice or cooked in dish. Yet,
the
fruits have many distinct in traits
such
as spine color, fruit color, stripe,
size
and etc. A large variation in length
and
diameter exist. Difference market or
place
prefers difference type of fruit, thus,
each
of these traits is considered important
and
subject to be improved. There is many
breeding
efforts have been carrying on to develop
varieties for their own consumer preference.
However, the information is still far
behind
even comparing to closely related species
emelonf (Cucumis melo).
Numerous of research have been working on diseases resistance as well as sex expression related genes since cucumber crop has an advantage of monoecious and gynoecious. However, other horticulture traits including growth habit have been often neglected. Cucumber growth habit or plant type is varying from compact plant type (the plant produces extremely short internodes petioles. etc) to very long plant type known as indeterminate type in Japan. In between these two plant types, determinant type whereas the plant growth apex is terminated by the flowers cluster, often mapped as phenotype marker known as de on chromosome group 1 same as other phenotype marker little leaves (ll) and female flower (f) or gynoecius. However, molecular characterization of de has not yet been understood. Although this crop is ripe for molecular work since it has rapid life cycle, easily crossed, and a small genome size approximately 450Mb. Therefore, our research have been focused on fruit trait quality and other important horticulture traits including plant growth habit in cucumber by using advance molecular biology technique.
We are now working on the following topics: 1. FT and TFL1 orthologs genes in cucumber (By SATO Hiroyuki) 2. Contraction of genetic linkage map and QTLs analysis of fruit quality related traits (By HEANG Dany) 3. Study of cytogenetics of cucumber crop
by using FISH method (By KUROZUMI Kenji)  |
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