Bai Qian, Ma Zhong, Zhang Yunqi, Su Shuchai, Leng Pingsheng
Ministry of Education Key Laboratory of Silviculture and Conservation, College of Forestry, Beijing Forestry University, 35 East Qinghua Road, Beijing, 100083, China.
National Energy R&D Center for Non-food Biomass, Beijing Forestry University, 35 East Qinghua Road, Beijing, 100083, China.
Breed Sci. 2019 Jun;69(2):205-214. doi: 10.1270/jsbbs.18167. Epub 2019 May 31.
Generally, species are dioecious, but monoecious strains in several populations have been found, providing excellent models for studying sex differentiation and sex determination mechanisms. Although the mechanisms of sex determination and sex evolution have been extensively studied, related research on heterozygous woody plants is limited. Here, we discuss the expressions of various sex types, which showed broad diversity and complex instability. We have also reviewed the sex determination systems in the plant kingdom and the morphological, cytological, physiological, and molecular aspects of the sex-linked markers in trees. Moreover, hypotheses to explain the origin of monoecy are discussed, which is more likely to be the interaction between sex-related genes and environment factors in female plants. Besides, further prospects for the utilization of monoecious resources and the research directions of sex determination mechanism are proposed. This study provides important information on sex expression and provides more insights into sex differentiation and determination.
一般来说，该物种是雌雄异株的，但在几个种群中发现了雌雄同株的菌株，这为研究性别分化和性别决定机制提供了极佳的模型。尽管性别决定和性别进化的机制已得到广泛研究，但关于杂合木本植物的相关研究却很有限。在此，我们讨论了各种性别类型的表达情况，其表现出广泛的多样性和复杂的不稳定性。我们还综述了植物界的性别决定系统以及树木中性别连锁标记的形态学、细胞学、生理学和分子学方面。此外，还讨论了解释雌雄同株起源的假说，其更有可能是雌性植株中性别相关基因与环境因素相互作用的结果。此外，还提出了关于雌雄同株资源利用的进一步展望以及性别决定机制的研究方向。本研究提供了有关性别表达的重要信息，并为性别分化和决定提供了更多见解。
