Analyses of high-quality genome sequences of Cucurbita maxima and C. moschata reveal an ancient allotetraploidy event in Cucurbita. The two subgenomes of paleo-allotetraploid Cucurbita show limited interchromosomal rearrangements, and display no genome dominance and biased fractionation. Allele-specific expression analysis in the hybrid of C.maxima × C. moschata detects transgressive expression correlated with heterosis in important agronomic traits.
For further reading:
- Karyotype Stability and Unbiased Fractionation in the Paleo-Allotetraploid Cucurbita Genomes: Molecular Plant
by: Honghe Sun, Shan Wu, Guoyu Zhang, Haizhen Li, Zhangjun Fei, and Yong Xu
Published:September 14, 2017
DOI: 10.1016/j.molp.2017.09.003
