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SCP基因的爆炸式扩张和功能专业化与硬鱼Meretrix meretrix中的"漂流"行为有关

Lu-Lu Fu¹, He-Ming Shi², Di-di Jin²

¹College of Marine Sciences, Ningbo University, Ningbo, 315010, PR China; College of Advanced Agricultural Sciences, Zhejiang Wanli University, Ningbo, 315101, PR China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, PR China.

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概括

肉质结合蛋白 (SCP) 中的基因重复驱动的适应. 雌性中的扩展SCP显示出亚功能化,有助于在潮区的生存,并使漂流等独特的行为成为可能.

科学领域:

海洋无脊椎动物生物学
基因组学和进化生物学
分子和细胞生理学分子和细胞生理学

背景情况:

体结合蛋白 (SCP) 调节无脊椎动物中的 (Ca2+) 稳态.
SCP基因家族的进化与特定物种的生理功能有关.
对SCP家族扩张对生物体生理和行为的影响尚不清楚.

研究的目的:

研究海洋无脊椎动物中SCP基因家族扩张的进化动态.
探索类贝中扩展的SCP基因的功能分专化.
为了阐明在美丽的特异漂移行为背后的分子机制.

主要方法:

遗传学和基因组分析以确定SCP基因扩展.
转录形状分析用于评估基因表达模式.
生物化学测试以确定蛋白质 - 配体结合性质.

主要成果:

在面对极端生理需求的血统中,SCP基因家族的扩张,由协同重复驱动,是突出的 (例如,,金).
在Veneridae中扩展的SCP基因表现出在各种组织中具有特殊表达的亚功能化,有助于适应潮间环境.
在漂移组织中高度表达的特定的对应物MmerSCP14,充当Ca2+结合开关,调节Meretrix meretrix漂移行为期间的粘液分泌.

结论:

大规模的基因重复为推动复杂行为表型的新型调节机制提供了基础.
SCP基因扩展和随后的子功能化/新功能化是海洋无脊椎动物适应和特殊行为演变的关键.
这项研究将基因组变化与海洋无脊椎动物的生理适应和复杂行为联系起来.

关键词:

融合进化的趋同.在漂流中漂流,漂流.梅雷里克斯梅雷里克斯梅雷里克斯新功能化的新功能化.石灰质结合蛋白 (SCP) 是一种石灰质结合蛋白.维纳里达 (Veneridae) 是一种动物.

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