新胃类动物的基因组学:隐藏在灌木中的脊柱
Alexander E Fedosov1,2, Paul Zaharias2, Thomas Lemarcis2
1Department of Zoology, Swedish Museum of Natural History, Box 50007, 10405 Stockholm, Sweden.
Systematic biology
|March 8, 2024
概括
对Neogastropoda的遗传学分析揭示了一致的家族层面的关系,但与进化树的基础作斗争. 解决Cancellariidae和核心Neogastropoda的位置关系需要进一步调查潜在的数据偏差.
科学领域:
- 海洋生物学 海洋生物学
- 进化生物学 进化生物学
- 人类遗传学 是一个学科.
背景情况:
- 一种多样化的海洋软体动物类别Neogastropoda表现出复杂的早期进化多样化,形成了一个具有挑战性的挑战性.
- 灌木 灌木 灌木 灌木 灌木 灌木 灌木 灌木 灌木
- 难以在遗传学上解决. 遗传学上很难解决.
- 以前使用分子数据的研究一直在努力澄清这个群体内的基本关系.
- 对海洋生物多样性和进化研究来说,了解Neogastropoda的基因结构至关重要.
研究的目的:
- 解决软体动物序列Neogastropoda中的基层遗传关系.
- 通过使用一个全面的数据集,研究Neogastropoda内部超级家族的单一性.
- 识别和解决遗传学上的不确定性,特别是关于Cancellariidae的位置和核心Neogastropoda的关系.
主要方法:
- 使用各种方法对1817个位点的综合性外体捕获数据集进行基因推断推断.
- 分析了112种类型,代表60个Neogastropoda家族中的48个.
- 检查家族遗传信号和潜在偏差,包括正统学违规和对应器损失.
主要成果:
- 一致的拓结构和对Muricoidea,Mitroidea和Conoidea的单类的高度支持.
- 在目前定义的Volutoidea和Turbinelloidea中,有过类的证据.
- 关于Cancellariidae的位置和核心Neogastropoda的基础的持续的基因学不确定性,一些Buccinoidea的关系也没有得到解决.
结论:
- 虽然大多数超家族关系得到了解决,但Neogastropoda的基因仍然具有挑战性.
- 坎塞拉里科的不确定位置可能源于全基因组重复事件和随后的对应物损失.
- 需要对精选的,较长的位置进行进一步的研究,才能完全解决Neogastropoda进化树.
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