|Table of Contents|

Mutagenic Effect on Branches of Bougainvillea spp.Induced by 60Co-γ Ray

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年22
Page:
51-57
Research Field:
Publishing date:

Info

Title:
Mutagenic Effect on Branches of Bougainvillea spp.Induced by 60Co-γ Ray
Author(s):
ZHOU Qun
(Xiamen Botanical Garden，Xiamen,Fujian 361003)
Keywords:
Bougainvillea spp.; 60Co-γ; radiation dose; branches; specific sites
PACS:
-
DOI:
10.11937/bfyy.20221389
Abstract:
The branches of ‘Golden Glow’‘Pixie Orange’ and‘Imperial Delight’ were selected as materials，and the survival rate of each variety was determined by using 10,20,30,40 Gy and 50 Gy as radiation dose，and non-radiation (0 Gy) branches as control (CK),in order to breed a new cultivar，we observed the mutants for 2 years and sequenced by GBS after they were stable in character and filtered the specific sites between the mutant and the control.The results showed that the survival rate of branches of three varieties were decreased with increased of radiation dose.All treatments were significantly lower than the control，except for the‘Pixie Orange’ treated with 10 Gy.The radiation tolerance of ‘Golden Glow’‘Pixie Orange’ and ‘Imperial Delight’ were 10-30,10-20 Gy and 10-20 Gy respectively.The order of radiation tolerance from strong to weak was ‘Pixie Orange’＞‘Golden Glow’＞‘Imperial Delight’.Among the three varieties，only‘Pixie Orange’ had three?mutants under 20 Gy.In ‘mutant 1’,the leaves were ovate and variegated,and the bracts were purplish red.The bracts of ‘mutant 2’ were purplish red.In ‘mutant 3’,the leaves were narrow ovate,the bracts were lanceolate and reddish, and perianth tube was prominent.The results of molecular identification showed that there were 234，305 and 281 specific sites in the three mutants compared with the control，respectively.

References:

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Last Update: 2023-01-17