Maternal inheritance of F1 hybrid morphology and colony shape in the coral genus Acropora

PeerJ
Hironobu FukamiNaoko Isomura

Abstract

The coral genus Acropora contains more than 150 species with very high morphological diversity. This high diversity may have been caused by repeated hybridization via mass spawning. However, we have little information whether hybrids are formed in these corals. Identifying morphological differences between hybrids and their parental species would provide an opportunity to find wild hybrids in the field and to understand how colony shapes of Acropora have become highly diversified throughout evolutionary history. In the two morphologically distinctive coral species Acropora florida and A. intermedia in the Indo-Pacific, their gametes show high rates of bi-directional intercrossing in vitro, and thus these two species are ideal species to investigate the morphological traits of the hybrids. We examined morphological characters of F1 hybrids from A. florida to A. intermedia, which were produced from in vitro crossing experiments. To compare morphological differences, we grew juveniles and mature colonies of reciprocal F1 hybrids (FLOint: A. florida eggs × A. intermedia sperm, and INTflo: A. intermedia eggs × A. florida sperm) and of the parental species (purebreds of A. intermedia and A. florida). We analyzed skeletal morphology s...Continue Reading

References

Nov 11, 1999·Molecular Biology and Evolution·M HattaT Sugiyama
Jun 18, 2002·Science·Steven V Vollmer, Stephen R Palumbi
Sep 25, 2008·PloS One·Zoe T RichardsDavid J Miller
Feb 22, 2012·PloS One·Nicole D FogartyDon R Levitan
Oct 3, 2012·Proceedings of the National Academy of Sciences of the United States of America·Glenn De'athMarji Puotinen
Aug 25, 2016·Biology Letters·Seiya KitanoboMasaya Morita

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BETA
LC428098

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nnet
R
PAUP *
SeaView
MrModeltest
Sequencher
PAUP

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