L066 國王迷宮和 L333 黃金帝王迷宮的關係確立
經過遺傳分析, 確定分布在申古河下游的 L066 國王迷宮和 L333 黃金帝王迷宮異形為同一種（species）！
你說這會在迷宮異型玩家之間造成什麼影響嗎？我認為並不會，在水族愛好者眼中，牠們仍然代表著不同的品系，只是現在我們對牠們的親緣關係有了更進一步的了解，就像對短鯛愛好者來說，並不會把祕魯酋長和泰菲酋長混為一談一樣… 只是其他熱門的申古河產迷宮類異型，像是 L287 / L399 國王虎斑、L400 熊貓迷宮以及 L236 皇后虎斑等等，想必異型迷應該更有興趣知道牠們彼此之間的關係…
文獻內容摘要：
The diversity of Hypancistrus species in the Xingu River is remarkable and the variation in color morphs represents a real challenge to taxonomists to delimit species boundaries. One of the most recognizable Hypancistrus complexes is the worm-lined species, known in the aquarium trade as King Tiger Plec in English, Hypancistrus “pão” in Portuguese or under the L-numbers L066 and L333 that represent two melanic pigment pattern phenotypes. To assess the identity of these two phenotypes, we described their karyotypes and sequenced part of the mitochondrial cytochrome oxidase I gene (DNA barcode). These fishes have 52 chromosomes (40 meta-submetacentric and 12 subtelo-acrocentric) and a strong heteromorphism in chromosome pair 21 was observed, which does not correlate with the two phenotypes or sex. DNA barcodes separated the samples analyzed from Hypancistrus zebra and other publicly available sequences of Loricariidae showing no divergence between the two phenotypes. The data set indicates that worm-lined Hypancistrus from the Xingu form a single species with clear chromosomal and melanic pigment pattern polymorphisms.
資料來源：
https://www.ncbi.nlm.nih.gov/pubmed/26983010
http://www.reef2rainforest.com/2016/10/13/genetic-evidence-indicates-xingu-plecos-l066-l333-are-same-species/
參考文獻：Cardoso, A. L., Carvalho, H. L., Benathar, T. C., Serrão, S. M., Nagamachi, C. Y., Pieczarka, J. C., de Sousa, L.M., Ready, J.S., and Noronha, R. C. (2016). Integrated Cytogenetic and Mitochondrial DNA Analyses Indicate That Two Different Phenotypes of Hypancistrus (L066 and L333) Belong to the Same Species. Zebrafish, 13(3), 209-216.
