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- W2390991516 abstract "108 Dry seeds of Qingke(Hordeum vulgare linn.var.nudum Hook.f) were carried into space by recoverable satellite.After wards,the seeds were germinated into 108 seedlings at room temperature,and root tips were observed with light microscope,and results and normal mitotic division was found without microkernel at interphase or chromosome bridges at anaphase,which means that chromosomal structure change didn't occur in Qingke seeds during space flight.To investigate whether there were morphology variations taken place,the seedlings were transplanted into field and managed normal.All of plants grew as strong as normal Qingke plants(CK) by eye abservation.except two plants showed abnormal inflorescence morphology,which had two spikes on one tiller.21 SSR markers on 7 linkage groups were used to analysis the polymorphism of genomic DNA for these Qingke plants.No polymorphism was detected with 20 SSR markers among 63 plants investigated.But varied electrophoretic bands were tested in 10 plants using the marker HVM54 on chromosome 2H,and all the 10 plants showed uniform electrophoretypes.It was concluded that the DNA of the Qingke could be changed during space flight." @default.
- W2390991516 created "2016-06-24" @default.
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- W2390991516 date "2007-01-01" @default.
- W2390991516 modified "2023-09-24" @default.
- W2390991516 title "VARIATION OF QINGKE(Hordeum vulgare linn.var.nudum Hook.f)INDUCED BY SPACE FLIGHT TREATMENT" @default.
- W2390991516 hasPublicationYear "2007" @default.
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