Genome and transcriptome sequencing characterises the gene space of Macadamia integrifolia (Proteaceae)

The large Gondwanan plant family Proteaceae is an early-diverging eudicot lineage renowned for its morphological, taxonomic and ecological diversity. Macadamia is the most economically important Proteaceae crop and represents an ancient rainforest-restricted lineage. The family is a focus for studies of adaptive radiation due to remarkable species diversification in Mediterranean-climate biodiversity hotspots, and numerous evolutionary transitions between biomes. Despite a long history of research, comparative analyses in the Proteaceae and macadamia breeding programs are restricted by a paucity of genetic information. To address this, we sequenced the genome and transcriptome of the widely grown Macadamia integrifolia cultivar 741.

大型冈瓦纳植物科山龙眼科（Proteaceae）是早期分化的真双子叶植物支系，以其形态、分类和生态多样性而闻名。澳洲坚果属是山龙眼科中经济价值最高的作物，代表了一个古老的雨林特有支系。该科因在地中海气候生物多样性热点地区显著的物种分化以及生物群落间的多次进化转变，成为适应性辐射（adaptive radiation）研究的焦点。尽管研究历史悠久，但山龙眼科的比较分析和澳洲坚果育种项目因缺乏遗传信息而受限。为解决这一问题，我们对广泛种植的全缘叶澳洲坚果（Macadamia integrifolia）品种741进行了基因组和转录组测序。