东亚第三纪孑遗植物的亲缘地理学:现状与趋势
发布时间：2018-09-17 19:58
【摘要】：通过分析比较近年来东亚第三纪孑遗植物的种群遗传学与亲缘地理学的研究结果,总结了它们的谱系地理格局式样,分析了其形成的共同地史或气候成因,并对未来的研究提出了展望。东亚孑遗植物的谱系地理式样主要表现为以下4个方面:(1)中新世中期至晚期的气候变冷变干驱使孑遗植物发生了近期的物种形成,而上新世末以及更新世的气候变化则促进了它们的种内谱系分化、遗传多样性形成以及种群的收缩与扩张,种群的收缩与扩张导致部分类群形成地理谱系"缝合带"。(2)由于不同的植物类群具有不同的生态位需求以及生物学特点,更新世冰期暴露的东海陆桥对中国 日本间断分布的孑遗植物具有不同的"过滤"与"廊道"效应,从而导致其呈现不同的遗传隔离式样。(3)上新世末青藏高原的快速隆升以及上新世末/更新世初东亚季风气候的加强可能是多个亚热带地区分布的孑遗植物沿四川盆地附近发生东西谱系分化的根本原因,也是西北干旱带分布的孑遗植物发生东西谱系分化的驱动因素。(4)自晚中新世以来的全球气候变冷变干驱使部分第三纪孑遗植物在更新世以前就已经从中国大陆或日本本岛迁入台湾,并发生隔离分化,形成了新的物种或地理谱系。总之,历史与当代的地理以及环境共同影响了东亚第三纪孑遗植物的地理分布、遗传多样性、谱系分化以及物种形成。最后,我们强调了目前由单位点的简单分子钟模型的运用造成的研究不足,并对未来的研究提出了展望,即基因组数据和生物地理模型的使用以及群落水平的整合亲缘地理学研究是未来的研究方向。
[Abstract]:By analyzing and comparing the research results of population genetics and phylogenetic geography of Tertiary relict plants in East Asia in recent years, the patterns of their pedigree geographical pattern are summarized, and the common geological history or climatic causes of their formation are analyzed. The prospect of future research is put forward. The phylogenetic patterns of relict plants in East Asia are as follows: (1) the cold and dry climate from the middle to the late Miocene led to the recent species formation of the relict plants. However, the late Pliocene and Pleistocene climatic changes promoted their intraspecific lineage differentiation, genetic diversity formation, and population contraction and expansion. The contraction and expansion of the population resulted in the formation of "suture zones" in some groups. (2) because different plant groups have different niche needs and biological characteristics, The East China Sea continental bridge exposed during the Pleistocene glacial period has different "filtering" and "corridor" effects on the intermittent distribution of relict plants in China and Japan. This resulted in different genetic segregation patterns. (3) the rapid uplift of the Qinghai-Tibet Plateau at the end of the Pliocene and the enhancement of the East Asian monsoon climate at the end of the Pliocene / early Pleistocene may be the relict plants distributed along Sichuan in several subtropical regions. The root cause of east-west pedigree differentiation in the vicinity of the basin, It is also a driving factor for the east-west lineage differentiation of relict plants in the arid zone of the northwest. (4) the global climate has cooled and dried since the late Miocene, which has driven some Tertiary relict plants from the mainland of China before the Pleistocene. Japan moved to Taiwan, And isolated and differentiated, forming a new species or geographical pedigree. In short, history and contemporary geography and environment affect the geographical distribution, genetic diversity, pedigree differentiation and species formation of Tertiary relict plants in East Asia. Finally, we emphasize the lack of research caused by the use of simple molecular clock models of unit points, and present a prospect for future research. That is, the use of genomic data and biogeographic models as well as the integration of phylogenetic studies at community level are the future research directions.
【作者单位】： 浙江大学生命科学学院濒危动植物保护生物学教育部重点实验室;
【基金】：国家自然科学基金(31370241,31570214);国家自然科学基金国际合作项目(31511140095,31561143015)
【分类号】：Q914
[Abstract]:By analyzing and comparing the research results of population genetics and phylogenetic geography of Tertiary relict plants in East Asia in recent years, the patterns of their pedigree geographical pattern are summarized, and the common geological history or climatic causes of their formation are analyzed. The prospect of future research is put forward. The phylogenetic patterns of relict plants in East Asia are as follows: (1) the cold and dry climate from the middle to the late Miocene led to the recent species formation of the relict plants. However, the late Pliocene and Pleistocene climatic changes promoted their intraspecific lineage differentiation, genetic diversity formation, and population contraction and expansion. The contraction and expansion of the population resulted in the formation of "suture zones" in some groups. (2) because different plant groups have different niche needs and biological characteristics, The East China Sea continental bridge exposed during the Pleistocene glacial period has different "filtering" and "corridor" effects on the intermittent distribution of relict plants in China and Japan. This resulted in different genetic segregation patterns. (3) the rapid uplift of the Qinghai-Tibet Plateau at the end of the Pliocene and the enhancement of the East Asian monsoon climate at the end of the Pliocene / early Pleistocene may be the relict plants distributed along Sichuan in several subtropical regions. The root cause of east-west pedigree differentiation in the vicinity of the basin, It is also a driving factor for the east-west lineage differentiation of relict plants in the arid zone of the northwest. (4) the global climate has cooled and dried since the late Miocene, which has driven some Tertiary relict plants from the mainland of China before the Pleistocene. Japan moved to Taiwan, And isolated and differentiated, forming a new species or geographical pedigree. In short, history and contemporary geography and environment affect the geographical distribution, genetic diversity, pedigree differentiation and species formation of Tertiary relict plants in East Asia. Finally, we emphasize the lack of research caused by the use of simple molecular clock models of unit points, and present a prospect for future research. That is, the use of genomic data and biogeographic models as well as the integration of phylogenetic studies at community level are the future research directions.
【作者单位】： 浙江大学生命科学学院濒危动植物保护生物学教育部重点实验室;
【基金】：国家自然科学基金(31370241,31570214);国家自然科学基金国际合作项目(31511140095,31561143015)
【分类号】：Q914
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