Santa-Cruz M C, Villaneuva A, Díez J L
Chromosoma. 1978 Oct 20;69(1):93-100. doi: 10.1007/BF00327383.
Galactose feeding of Chironomus thummi larvae induces the regression of Balbiani ring c (BRc) and the full expansion of BRb, both localized in the IV salivary gland chromosome. This effect coincides with that described on BR2 and BR1 of Ch. pallidivittatus and Ch. tentans. The puffing changes of BRb and BRc throughout develoment have been studied and also show identical variations as in BR1 and BR2 of Ch. pallidivittatus and Ch. tentans. The similar behaviour of BRb and BR1, and of BRc and BR2 respectively after galactose treatment and throughout development strongly suggests that these BRs play the same physiological role in the three Chironomus species, with BRb = BR1 and BRc= BR2.
用半乳糖喂养图氏摇蚊幼虫会导致位于第四对唾液腺染色体上的巴尔比亚尼环c（BRc）退化以及BRb完全扩张。这种效应与在苍白摇蚊和细摇蚊的BR2和BR1上所描述的效应一致。已经研究了BRb和BRc在整个发育过程中的胀泡变化，其变化也与苍白摇蚊和细摇蚊的BR1和BR2相同。半乳糖处理后以及在整个发育过程中，BRb与BR1、BRc与BR2分别表现出相似的行为，这有力地表明这些巴尔比亚尼环在这三种摇蚊物种中发挥着相同的生理作用，即BRb = BR1且BRc = BR2。
