THE DUAL ROLE OF SELECTION AND EVOLUTIONARY HISTORY AS REFLECTED IN GENETIC CORRELATIONS
THE DUAL ROLE OF SELECTION AND EVOLUTIONARY HISTORY AS REFLECTED IN GENETIC CORRELATIONS
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DOI：
10.1111/j.1558-5646.1994.tb01346.x
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发表时间：
1994-06-01
期刊：
影响因子：
3.3
通讯作者：
FONG, DW
中科院分区：
文献类型：
--
作者：
JERNIGAN, RW;CULVER, DC;FONG, DW
比较了小钩虾春居和洞居两个群体的一系列眼和触角性状间的遗传相关模式。这两组人口来自不同的排水系统，并代表两个独立的入侵洞穴栖息地的表面居住的人口。矩阵相关性，使用排列检验，表明在同一流域，从同一栖息地的种群之间的显着相关性。双标图技术，它允许同时考虑不同的遗传相关和不同的群体之间的关系，被用来进一步分析的相关结构。一个秩3双标图表明，春季和洞穴种群在很大程度上区分眼睛触角的相关性，而盆地区分眼睛触角和触角触角的相关性。眼睛触角的相关性，这是可能受到选择，是最相似的栖息地内，这是可能有类似的选择制度。
The patterns of genetic correlations between a series of eye and antenna characters were compared among two sets of spring-dwelling and cave-dwelling populations of Gammarus minus. The two sets of populations originate from different drainages and represent two separate invasions of cave habitats from surface-dwelling populations. Matrix correlations, using permutation tests, indicated significant correlations both between populations in the same basin and from the same habitat. The technique of biplot, which allows for the simultaneous consideration of relationships between different genetic correlations and different populations, was used to further analyze the correlation structure. A rank-3 biplot indicated that spring and cave populations were largely differentiated by eye-antennal correlations, whereas basins were differentiated by both eye-antennal and antennal-antennal correlations. Eye-antennal correlations, which are likely to be subject to selection, were most similar within habitats, which are likely to have similar selective regimes.