Chromosome-level genome of <i>Madhuca hainanensis</i> reveals genomic evolution and floral divergence in <i>Madhuca</i>.
Ma Y, Wang Z, Qiu J, Ye S, Chen G, Qin J, Zhang L.
Conservation Genomics
The mahua tree's seeds produce an oil used in cooking and traditional medicine across Asia, and decoding why its endangered relatives struggle to fruit tells us exactly which genes to target if we ever want to help them recover in the wild.
Researchers decoded the entire DNA of a rare endangered tree from Hainan Island, China — a relative of the well-known mahua or Indian butter tree. By comparing its genetic blueprint to a fast-growing cousin, they pinpointed six specific genes that explain why this tree barely produces fruit and has a different flower shape. This genetic map is now a key tool for scientists trying to save the species before it disappears.
Key Findings
The genome of Madhuca hainanensis was assembled at chromosome level: 760.86 Mb organized across 12 pseudochromosomes using cutting-edge PacBio HiFi and Hi-C sequencing.
Six key genes — including ADO1 and COL5 — were identified as drivers of floral divergence between the endangered Madhuca species and their faster-reproducing relative.
Both Madhuca hainanensis and Madhuca pasquieri are listed as Vulnerable on the IUCN Red List and show notably lower fruit set compared to the common, fast-growing Madhuca longifolia.
chevron_right Technical Summary
Scientists have sequenced the complete genome of Madhuca hainanensis, a rare endangered tree from China, uncovering the genetic roots of its low fruit production and distinctive flowers. The findings provide a molecular roadmap for conservation efforts aimed at preventing this vulnerable species from extinction.
Abstract Preview
<i>Madhuca hainanensis</i> and <i>Madhuca pasquieri</i> are endangered species in China, classified as vulnerable on the IUCN red list. Compared to the fast-growing <i>Madhuca longifolia</i>, they ...
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