Maggioni R, Rogers A D, Maclean N
FECLESC & NUGEN, Universidade Estadual do Ceará, Av. Paranjana 1700, Fortaleza, CE 60740-000, Brazil.
Mol Ecol. 2003 Dec;12(12):3213-7. doi: 10.1046/j.1365-294x.2003.01987.x.
The population structure of the only Litopenaeus species occurring in Brazilian waters, the white shrimp L. schmitti, was surveyed by screening six microsatellite loci. High diversity (HE = 0.863; average number of alleles per locus = 37.8) was found across eight geographical locations (2 degrees S to 27 degrees S). Estimates of overall FST(0.0060) were low but significantly different from zero (P < 0.05). FST pairwise estimates and amova revealed a significant discontinuity around a major biogeographical boundary, near Cabo Frio, at 23 degrees S. This separation may have been caused either by historical or on-going hydrogeographical and/or selective factors.
通过筛选六个微卫星位点，对巴西海域唯一的凡纳滨对虾物种——白色对虾施氏凡纳滨对虾的种群结构进行了调查。在八个地理位置（南纬2度至27度）发现了高多样性（HE = 0.863；每个位点的平均等位基因数 = 37.8）。总体FST估计值（0.0060）较低，但显著不同于零（P < 0.05）。FST成对估计值和分子方差分析显示，在南纬23度靠近弗里约角的一个主要生物地理边界周围存在显著的间断。这种分离可能是由历史因素或持续的水文地理和/或选择因素造成的。
