Identification of a novel member in the family Albulidae (bonefishes).
Identification of a novel member in the family Albulidae (bonefishes).
复制标题
Albulidae（北梭鱼）科新成员的鉴定。
作者：
E. Wallace;M. Tringali
一种新的加勒比种Albula sp. cf.通过遗传学和形态测量学研究，诊断为白鲑科（骨鱼）的狐。来自16 S rRNA序列的系统发育揭示了加勒比骨鱼之间存在严重分离的谱系。线粒体DNA序列的差异表明，在距今300万至520万年前（b.p.）之间存在分离。细胞色素B基因进一步支持了A.参见vulpes作为一种新的albulid。形态变异揭示了A.参见狐狸和其他加勒比物种。一个微卫星文库的开发，以辨别物种之间的杂交率。微卫星分析显示，在复杂的一些成员之间的杂交水平低。在A. vulpesxA. sp. B和纯A. sp. B，表明杂种可能具有降低的健身或可能是由于时空产卵栖息地的差异生殖隔离。
A novel Caribbean species Albula sp. cf. vulpes in the family Albulidae (bonefishes) was diagnosed through genetic and morphometric study. Phylogenies derived from 16S rRNA sequences revealed deeply separated lineages among Caribbean bonefishes. Mitochondrial DNA sequence divergences indicated a separation between 3.0 and 5.2 million years before present (b.p.). Cytochrome b phylogenies further supported the classification of A. sp. cf. vulpes as a novel albulid. Morphological variability revealed several differences between A. sp. cf. vulpes and other Caribbean species. A microsatellite library was developed to discern hybridization rates among the species. Microsatellite analyses revealed low levels of hybridization between some members in the complex. One instance of backcrossing was found between A. vulpesxA. sp. B and a pure A. sp. B, indicating that hybrids may have reduced fitness or may be reproductively isolated due to temporal-spatial spawning habitat differences.