整心体可能仅由几个兆基数大小的卫星阵列组成
Yi-Tzu Kuo1, Amanda Souza Câmara2, Veit Schubert2
1Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Corrensstrasse 3, 06466, Seeland, Germany. kuo@ipk-gatersleben.de.
Nature communications
|June 13, 2023
概括
一种全中心植物Chionographis japonica具有独特的,大型的中间体单位,而不是众多的小单位. 这一发现扩大了我们对全中心染色体中中间体多样性的理解.
科学领域:
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
- 细胞遗传学 细胞遗传学
背景情况:
- 中介质对于细胞分裂期间的染色体分离至关重要.
- 一个中心的染色体有一个单一的中间体,而全中心的染色体有沿着染色体分布的中间体.
- 整体中心物种通常表现出许多小的中间体单位.
研究的目的:
- 为了研究状植物Chionographis japonica的全心体和 (epi) 基因组组织.
- 描述全中心物种中中心单位的结构和排列.
- 模拟细胞分裂期间全心体的动态形成.
主要方法:
- 染色体尺度参考基因组组合.
- 对全中心体和 (epi) 基因组组织的分析.
- 聚合物模拟用于建模中心体形成.
主要成果:
- 奇奥诺格拉菲斯·日普尼卡 (Chionographis japonica) 每个全中心染色体有7到11个大,均的中间体单位.
- 这些单元包含具有单体的卫星阵列,能够形成平行体结构.
- 欧和异色色素的排列不同于其他已知的全中心物种.
- 介相中间体聚合成染色中心,类似于单中心物种.
- 前相全中心体从相间集群中形成线状结构.
结论:
- 整心性不仅限于具有许多小中心体单位的物种.
- 奇奥诺格拉菲斯日本表现出独特的全心体组织,扩大已知的中心体的多样性.
- 这项研究提供了对全中心染色体的结构和组织原理的见解.
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