Evolution in the Phyllosoma and Puerulus Phases of the Spiny Lobster Genus Panulirus White
Evolution in the Phyllosoma and Puerulus Phases of the Spiny Lobster Genus Panulirus White
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白龙虾属叶体和幼稚阶段的进化
DOI：
10.1163/193724095x00532
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发表时间：
1995
影响因子：
1.1
通讯作者：
P. S. Mcwilliam
中科院分区：
文献类型：
--
作者：
P. S. Mcwilliam
本文综述了龙虾属19种中17种的叶状体和叶状囊的形态学和个体发育，以建立叶状体和叶状囊的种组，并与乔治和梅因（1967）的成体种组进行比较。本文给出了Panulirus各早期发育阶段几个种群的演化序列。这些群体与成年群体一致，除了P. interruptus（Randall）和P. guttatus（Latreille）。比较形态学数据表明，2个基本叶状体和puerulus形式。较近的热带物种比早期亚热带物种具有更特化的叶状体和葛根形式。中断裂殖吸虫的叶状体和叶状囊是一种中间形态。点斑拟步行虫幼虫为早期叶状体，其最后3个阶段的特化、匙形触角的发育是独特的。这一特征只出现在最近的热带物种的最后阶段。这是一致的，与其他比较个体发育的数据表明，一致的趋势，“加速”幼虫发育的属内。这意味着在最近的物种中，幼虫期缩短，因为它们的幼虫发育可能在较短的时间内完成。叶状体和puerulus的分组加强了这样一种观点，即有一个“早期”和“晚期”的Panulirus物种的进化序列。在它们较年轻的发育阶段，进化是沿着沿着不同的形态学路线，可能还有行为学路线进行的。
Morphology and ontogeny of the phyllosomata and pueruli of 17 of the 19 species of Panulirus were reviewed in order to create phyllosoma and puerulus species-groups for comparison with the adult species-groups of George and Main (1967). An evolutionary sequence of several species-groups in each of the early developmental phases of Panulirus is presented. These groups correspond well with the adult groups, with the exceptions of P. interruptus (Randall) and P. guttatus (Latreille). Comparative morphological data indicate 2 basic phyllosoma and puerulus forms. The more recent tropical species have a more specialized form of phyllosoma and puerulus than those of the early subtropical species. The phyllosoma and the puerulus of P. interruptus are of an intermediate form. The larvae of P. guttatus are of the early phyllosoma form and are unique in showing development of the specialized, spatulate, antenna through their last 3 stages. This character appears only in the final stage of the more recent tropical species. This is consistent with other comparative ontogenetic data which indicate a trend toward consistently "accelerated" larval development within the genus. This implies a shortening of the planktonic phase in the more recent species, since their larval development may be completed in a shorter time relative to that of the earliest species. The phyllosoma and puerulus groupings strengthen the view that there is an evolutionary sequence of "earlier" and "later" species of Panulirus. In their younger developmental phases, evolution has proceeded along different morphological, and probably behavioral, lines.