Biogeography and origin of Lilium longiflorum and L-formosanum (Liliaceae) endemic to the Ryukyu Archipelago and Taiwan as determined by allozyme diversity
Biogeography and origin of Lilium longiflorum and L-formosanum (Liliaceae) endemic to the Ryukyu Archipelago and Taiwan as determined by allozyme diversity
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DOI：
10.2307/3558334
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发表时间：
2001-07-01
影响因子：
3
通讯作者：
Huang, CW
中科院分区：
文献类型：
--
作者：
Hiramatsu, M;Ii, K;Huang, CW
研究了麝香百合和百合的13个同工酶位点的等位酶多样性。台湾特有种，分布于东亚大陆起源的亚热带群岛。L.等位酶的变异和分歧程度。longiflorum是非常高的岛屿特有种，表明目前广泛分布在许多岛屿，在这种表型变化不大的物种相对较长的持久性。台湾百合表现出较低的变异性和分歧比L。longiflorum，与L. longiflorum的最高属同一性值为0.978。结合其他生物和岛屿地质历史信息，我们的研究结果表明，L。麝香草（L. longiflorum）是在上新世末左右建立的，当时目前的分布区仍是古亚洲大陆的连续部分，而麝香草（L. longiflorum）则是在上新世末建立的。formosanum起源于L. longiflorum在更新世晚期，台湾大陆与邻近岛屿和大陆完全分离。几种L. longiflorum种群分布在海拔较低的岛屿上。这反映了在群岛发展过程中，这些低矮岛屿完全或几乎完全淹没后的瓶颈效应。
Allozyme diversity on 13 isozyme loci was investigated for two bulbous species, Lilium longiflorum and L. formosanum, endemic to the subtropical archipelago of continental origin located in East Asia. Degrees of allozyme variability and divergence for L. longiflorum were very high for insular endemic species, indicating relatively longtime persistence of the present widespread distribution across many islands in this phenotypically little-changed species. Lilium formosanum exhibited rather lower variability and divergence than did L. longiflorum and was genetically close to the southern peripheral populations of L. longiflorum with 0.978 as its highest generic identity value. Combined with other biological and insular geohistorical information, our results suggest that L. longiflorum was established around the end of the Pliocene when the current distribution area was still a continuous part of the ancient Asian continent, and L. formosanum was derived fr-om southern populations of L. longiflorum around the late Pleistocene when the mainland of Taiwan was completely separated from the adjacent islands and the main continent. Depauperization of allozyme variability in some L. longiflorum populations was found on islands with lower altitudes. This reflects bottleneck effects after the complete or almost complete submergence of such low islands during the archipelago's development.