Homosporous ferns produce sporophytes by intra gametophytic selfing, inter gametophytic mating, or apogamy.Gametangium ontogeny, genetic load, and ploidy affect the mating system of each species.
摘要同型孢蕨类的孢经由同自交、异交两类育系统或以无生殖的方式产生,异交又分为异自交和异异交两种方式。
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The need to establish new supply chains means that transport and logistics are another area where intra-Asian investment will probably increase, notes Sabita Prakash of adm Capital, a private-credit firm.
私人信贷公司 adm Capital 的萨比塔·普拉卡什 (Sabita Prakash) 指出,建立新供应链的需要意味着运输和物流是亚洲内部投资可能加的另一个领域。