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首页> 外文期刊>Acta Horticulturae >Dioecy, Pollination and Seed Dispersal in Australian Spiny Solatium
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Dioecy, Pollination and Seed Dispersal in Australian Spiny Solatium

机译：澳大利亚多刺梭菌的对映，授粉和种子扩散

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The causes, consequences and correlates of dioecy have been the subject of much discussion since the days of Darwin. Several more recent authors have stressed the importance of informing the body of theory with studies that focus on lineages in whichboth dioecy and cosexuality are present. Solatium is an ideal group for this because dioecy, cosexuality and unisexual transitions between them all occur. As a theoretical extension of recent phylogenetic and field-based inquiry, we present three suitesof hypotheses regarding the evolution and maintenance of dioecy in Australian spiny Solarium, the group in which much of the dioecy known for the genus (10 of 14 species) occurs. First, we explore the breeding system transitions necessary for dioecy to evolve from andromonoecy. Next, we discuss the potential role of local pollinator behavior in both fostering inbreeding and ensuring outcrossing. Finally, we propose a scenario in which rock-wallabies function as biotic seed dispersal agents of dioeciousand andromonoecious Australian solanums through "fecal seed storage" followed by "seasonal redispersal."
机译：自达尔文时代以来，雌雄异体的原因，后果和相关性一直是许多讨论的主题。最近有几位作者强调通过研究集中于存在两性和两性的血统的研究来告知理论体系的重要性。 Solatium是理想的组合，因为它们之间都发生了雌雄异体，两性和单性的转变。作为最近的系统发育和田野调查的理论延伸，我们提出了三组关于澳大利亚多刺日光浴中对映体的进化和维持的假说，在该群体中发生了许多以该属已知的对映体（14种）。首先，我们探讨了雌雄对雄从单性生殖进化到繁殖系统的必要转变。接下来，我们讨论本地授粉媒介行为在促进近交和确保杂交方面的潜在作用。最后，我们提出了一种方案，其中岩袋鼠通过“粪便种子存储”，然后是“季节性再分散”，作为澳大利亚雌雄异株和雌雄同株的生物种子传播剂。

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