The genomic architecture of the sex-determining region and sex-related metabolic variation in Ginkgobiloba.
Plant J
; 104(5): 1399-1409, 2020 12.
Article
en En
| MEDLINE
| ID: mdl-33015884
ABSTRACT
Sex differences and evolutionary differences are critical biological issues. Ginkgo is an ancient lineage of dioecious gymnosperms with special value for studying the mechanism of sex determination in plants. However, the major genetic basic underlying sex chromosomes remains to be uncovered. In this study, we identify the sex-determining region of Ginkgo and locate it to the area from megabases 48 to 75 on chromosome 2. We find that the male sex-determining region of Ginkgo contains more than 200 genes, including four MADS-box genes, demonstrating that the Ginkgo sex determination system is of the XY type. We also find that genetic sex differences result in specialized flavonoid metabolism and regulation in each sex. These findings establish a foundation for revealing the molecular mechanism of sexual dimorphism and promoting the development of the Ginkgo industry.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Proteínas de Plantas
/
Polen
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Ginkgo biloba
/
Óvulo Vegetal
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Plant J
Año:
2020
Tipo del documento:
Article
País de afiliación:
China