Ecological speciation of Japanese hedgehog mushroom: Hydnum subalpinum sp. nov. is distinguished from its sister species H. repando-orientale by means of integrative taxonomy
Ecological speciation of Japanese hedgehog mushroom: Hydnum subalpinum sp. nov. is distinguished from its sister species H. repando-orientale by means of integrative taxonomy
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日本刺猬蘑菇的生态形态：Hydnum subalpinum sp.
DOI：
10.1007/s11557-022-01844-7
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发表时间：
2022
影响因子：
2.4
通讯作者：
Endo Naoki
中科院分区：
文献类型：
--
作者：
Sugawara Ryo;Aoki Wataru;Yamada Akiyoshi;Nakagiri Akira;Endo Naoki
东方水螅（Hydnumrepando-orientale）是一种与H. boreorepandumandH. repandum;所有这三个物种生产食用蘑菇。我们确定了两个生态组的H。repando-orientalin日本：一个温带类群，出现在海拔1200米以下的壳斗科为主的森林中。(ROF)亚高山群，产于海拔1900 m以上的高山针叶林中。（ROC）。我们重新研究了两个生态类群的分类。repando-orientale使用综合方法。根据内转录间隔区（ITS）和编码nc rRNA大亚基（LSU）、翻译延伸因子-1 α（TEF 1）、RNA聚合酶II最大亚基（RPB 1）和RNA聚合酶II第二大亚基（RPB 2）的基因部分，推断了这两个生态类群和其他相关物种的系统发育。连接的系统发育树分离的两个生态组到良好的支持姐妹分支。此外，基于拓扑一致性（GCPSR）和聚结模型（GMYC和BP&P）的物种划分支持分离两个生态组。形态学分析表明，ROC标本的担孢子明显大于ROF标本。Mon-mon交配测试使用6个ROF、3个ROC和3个H。boreorepandumstrains各自显示出独立的不亲和群，而一个ROC菌株显示出与ROC和ROF群体的相容性。根据这些结果，我们将ROC群定义为一个新种，H.亚高山因为。repando-orientaleandH.亚高山植物nc rDNA的遗传分化较小，保持了轻微的性亲和性，可能是最近在东亚地区形成的。
Hydnum repando-orientaleis an East Asian species closely related toH. boreorepandumandH. repandum; all three species produce edible mushrooms. We identified two ecological groups ofH. repando-orientalein Japan: a temperate group occurring in Fagaceae-dominated forest at < 1200 m a.s.l. (ROF) and a subalpine group occurring in coniferous forest in highland at > 1900 m a.s.l. (ROC). We re-examined the taxonomy of the two ecological groups ofH. repando-orientaleusing integrative approaches. Phylogenies of the two ecological groups and other related species were inferred from the internal transcribed spacer (ITS) and gene portions encoding the large subunit of nc rRNA (LSU), translation elongation factor-1 alpha (TEF1), RNA polymerase II largest subunit (RPB1), and RNA polymerase II second-largest subunit (RPB2). The concatenated phylogenetic tree separated the two ecological groups into well-supported sister clades. Also, species delimitations based on the topological congruence (GCPSR) and coalescent models (GMYC and BP&P) supported to separate the two ecological groups. Morphological analysis showed that ROC specimens had significantly larger basidiospores, compared with ROF specimens. Mon-mon mating tests using six ROF, three ROC, and threeH. boreorepandumstrains each showed independent incompatible groups, whereas one ROC strain showed compatibility with both ROC and ROF populations. Based on these results, we defined the ROC group as a new species,H. subalpinum. BecauseH. repando-orientaleandH. subalpinumhave smaller genetic divergence in nc rDNA and maintain slight sexual compatibility, they may have recently speciated in East Asia.
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影响因子：
2.8
作者：
Jeremy R. Dettman;D. Jacobson;John W. Taylor
通讯作者：
Jeremy R. Dettman;D. Jacobson;John W. Taylor
影响因子：
1
作者：
K. Harrison;D. Grund
通讯作者：
D. Grund
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影响因子：
2.8
作者：
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通讯作者：
M. Martín
影响因子：
2.2
作者：
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通讯作者：
T. Bruns
影响因子：
10.7
作者：
Kumar, Sudhir;Stecher, Glen;Tamura, Koichiro
通讯作者：
Tamura, Koichiro