The genomic architecture of the sex-determining region and sex-related metabolic variation in Ginkgobiloba
| Autor: | Sanwen Huang, Junbo Gou, Hailin Liu, Jianbin Yan, Tongming Yin, Qinggang Liao, Ran Du, Lvjun Guo, He Shen, Julie K. Nguyen, Ray Ming |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Genetic Markers Lineage (genetic) MADS Domain Proteins Plant Science 01 natural sciences Chromosomes Plant 03 medical and health sciences Gymnosperm Genetics Sex-determination system Plant Proteins Ovule biology Mechanism (biology) Ginkgo biloba Ginkgo Chromosome Cell Biology Sex Determination Processes biology.organism_classification Sexual dimorphism 030104 developmental biology Evolutionary biology Pollen Genome Plant 010606 plant biology & botany |
| Zdroj: | The Plant journal : for cell and molecular biologyReferences. 104(5) |
| ISSN: | 1365-313X |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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