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WntA表达和翅膀转录学阐明了船长蝶的条纹图案的演变

Jasmine D Alqassar¹, Teomie S Rivera-Miranda², Joseph J Hanly^1,3

¹Department of Biological Sciences, The George Washington University, Washington, 20052, DC, USA.

|November 4, 2025

概括

船长蝶 (Hesperiidae) 与其他蝶共享一个保存的翅膀图案机制,即中央对称系统 (CSS). 这项研究支持CSS在9500万年的进化过程中的同质性.

科学领域:

发展生物学发展生物学
进化生物学进化生物学
昆虫学昆虫学是一门学科.

背景情况:

蝶 (Hesperiidae) 是一种蝶血统,其翅膀的发育模式不太清楚.
据假设,船长的中间条纹与 nymphalids 中的中央对称系统 (CSS) 相同.

研究的目的:

为了研究CSS在银斑船长,Epargyreus clarus.的同质性.
探索船长翅膀模式发展背后的遗传机制.

主要方法:

为Epargyreus clarus.生成了一个注释的基因组.
利用RNA测序 (RNAseq) 在翼近距离 (P-D) 轴上对基因表达进行分析.
研究了WntA和关键转录因子基因的表达.

主要成果:

在E. clarus中WntA表达支持CSS在9500万年间的同质性.
转录因子的叶片,U型和奇偶对显示受限的PD表达,表明CSS模式中的作用.
保护P-D模式基因 (dachsous,四关节等) 的保存. 在白科和白科之间,表明了深度的进化保护.

结论:

这项研究提供了强有力的证据,证明了蝶翅膀图案中CSS的保存性.
确定了船长翼模式中的潜在遗传参与者,包括WntA和特定的转录因子.
突出了昆虫翅膀P-D模式机制的深度保护,这些机制跨越了诸如虫和虫等多个不同类型.

关键词:

发育的同质性是发展的同质性.这就是Evo-devo.黑类动物黑类动物尼姆法利德的地面图.模式形成的形成模式.在近距离的模式.翅膀上皮质翅膀上皮质没有WntA信号传输.

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