Method for overcoming incompatibility of distant hybridization stigmas of plants

A technology of distant hybridization and stigma, which is applied in the field of plant distant hybridization, can solve problems such as inability to fertilize ovules and fail to complete normal development, achieve the effect of enriching genetic diversity and promoting the fusion of different genetic resources
CN113273490AActive Publication Date: 2021-08-20LUOYANG ACADEMY OF AGRI & FORESTRY SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
LUOYANG ACADEMY OF AGRI & FORESTRY SCI
Publication Date
2021-08-20

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Abstract

The invention discloses a method for overcoming incompatibility of distant hybridization stigmas of plants. According to the method, a pollination area of the stigmas is irradiated by using laser, the intensity and irradiation time of the laser are controlled, the pollination area of the stigmas is not destroyed completely, the identification of the stigmas on pollen specificity is reduced, so that the fertilization of ovules of paeonia lactiflora is completed, the problem of affinity between peony pollen and paeonia lactiflora stigmas is effectively solved, the fertilization process is normally completed, fusion of different genetic resources is effectively promoted, the genetic diversity of germplasm resources is further enriched, and a foundation is laid for further breeding of excellent new peony varieties. Meanwhile, the method can also be explored and applied to distant hybridization work of other plants with stigma incompatibility.
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Description

technical field

[0001] The invention relates to the technical field of plant distant hybridization, in particular to a method for overcoming plant distant hybridization stigma incompatibility. Background technique

[0002] In the process of plant breeding, the use of distant hybridization between species and genera with relatively distant kinship can produce more abundant genetic variation than conventional sexual hybridization between species within a species, which is not only one of the effective ways for germplasm innovation , and has important theoretical significance in the study of biological issues such as the formation, evolution and phylogeny of species. However, in the long-term evolution process of plants, various isolation mechanisms have been formed, and distant hybridization is very difficult. The incompatibility of distant hybridization and the sterility of hybrids are the main reasons for the slow progress of plant distant hybridization breeding. At the sam...

Claims

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