AI Article Synopsis
- Achlorophyllous plants, such as a specific perennial orchid studied, don't produce chlorophyll and rely on soil fungi for nutrients.
- The study successfully assembled the orchid's genome to 1.12 Gb, revealing important genetic information about its adaptation to a non-photosynthetic lifestyle.
- Key genes associated with photosynthesis and other related functions were found to be lost or significantly relaxed in selection through evolution, highlighting the evolutionary shifts in these types of plants.
Article Abstract
Achlorophyllous plants are full mycoheterotrophic plants with no chlorophyll and they obtain their nutrients from soil fungi. is a perennial, achlorophyllous orchid that displays distinctive evolutionary strategy of adaptation to the non-photosynthetic lifestyle. Here in this study, the genome of was assembled to 1.12 Gb with a contig N50 size of 110 kb and a scaffold N50 size of 1.64 Mb so that it helped unveil the genetic basics of those adaptive changes. Based on the genomic data, key genes related to photosynthesis, leaf development, and plastid division pathways were found to be lost or under relaxed selection during the course of evolution. Thus, the genome sequence of provides a good resource for future investigations of the evolution of orchids and other achlorophyllous plants.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7711107 | PMC |
| http://dx.doi.org/10.3389/fgene.2020.580568 | DOI Listing |
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