Algae breeding method based on intergeneric hybridization

Abstract

The invention discloses an algae breeding method based on intergeneric hybridization, which is characterized by using temperature, illumination and other physical conditions and chemical elements in culture solution, such as nitrogen, phosphorus, iron and the like to treat algae gametophyte cells of different genera of Laminariales; synchronously developing different genera of female gametophytes and male gametophytes to form intergeneric heterozygotes; and developing the intergeneric heterozygotes to large sporophytes. The method has the advantages that great differences of forms, yields and economic components (algin, polysaccharides from Dunaliella salina) of different genera of algaes are utilized to culture artificial algae with the comprehensive advantages of two genera of algaes through intergeneric hybridization, thus obtaining novel algae varieties or strains having the advantage of comprehensive economic characters, and improving economic attributes of yield, economic components and the like.

Description

technical field [0001] The invention relates to an algae breeding method, in particular to an algae breeding method based on intergenus hybridization. Background technique [0002] Natural intergeneric hybrid seaweeds do not exist in nature. The seaweed hybrid varieties cultivated by the current seaweed breeding work are also all intraspecific or interspecific hybrid varieties or strains. Although hybrid breeding technology has been widely used at present, its breeding materials are limited to the exchange or combination of genetic material within the genus, and the economic traits of seaweed obtained by it still retain the characteristics of the genus of seaweed, especially for yield and economic components. traits such as algae cannot be significantly improved, and the space for further improving the economic traits of seaweed is limited on this basis. Contents of the invention [0003] In view of the problems referred to above, the purpose of the present invention is ...

AI Technical Summary

Problems solved by technology

Although hybrid breeding technology has been widely used at present, its breeding materials are limited to the exchange or combination of genetic material within the genus, and the economic traits of seaweed obtained by it still retain the characteristics of the genus of seaweed, especially for yield and economic components. traits such as algae cannot be significantly improved, and the space for further improving the economic traits of seaweed is limited on this basis.