Challenging Road to Seed Propagation of Sweet Potato (Ipomoea batatas (L.) Lam): A Case Study in Direct Gene Transformation System to Seeds of Sweet Potato Using Electroporation Method | Chapter 01 | Current Research in Agriculture and Horticulture Vol. 1
Apomixis bypasses meiosis to produce
seed. And it is considered to bring economic benefits over than the “Green
Revolution” by using to fixation of F1 variety in agriculture. In our
laboratory, we have been successful in cloning the apomixis-specific gene of
ASG-1, isolated from Panicum maximum. In order to do functional analysis of the
ASG-1, we have been carrying out the gene transformation of ASG-1 in sweet
potato, a vegetative reproductive crop. In this study, the purpose is getting
transformants by using the seeds of sweet potato and the instrument of NEP21,
an electroporation. As the first step, we used the Ipomoea nil cv.
[Kitachiasagao] as stock and Ipomoea batatas (L.) cv. [Koganesengan],
[Narutokintoki] and [Beniazuma] as graft to get seeds. And then, the
transformants of GUS was induced into sweet potato seeds by using the
instrument of NEP21. As the results, 1) according to the standard of selecting
variety based on the cross incompatibility referred from Kyushu-Okinawa
Agricultural Research Center, we selected 3 varieties out from 6 ones held; 2)
according to the standard of selection suitable to be used as either seed side
or pollen side, we have gotten matured seeds successfully from the 3 varieties;
3) using the sweet potato seeds collected and the instrument of NEP21, GUS gene
expression was detected in the transformant by GUS dyeing with blue color
appeared on the surface of the seeds and young buds.
Author(s) Details
Author(s) Details
Lanzhuang Chen
School of Horticulture and
Food Sciences, Minami Kyushu University, 3764-1, Tatenocho, Miyakonojo-City,
Miyazaki, 885-0035, Japan.
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