Home • Lactarius sanguifluus B21 v1.0
Lactarius sanguifluus
Fruiting bodies of Lactarius sanguifluus (forest of Morgon, Pontis city, Alpes-de-Haute-Provence, France, scale bar: 10 mm) . Image credit: Jacques Guinberteau (France).

This genome was sequenced as part of the JGI CSP "1KFG - Deep Sequencing of Ecologically-relevant Dikarya" and more specifically as a part of the Russulaceae Sequencing Project, which seeks to densely sample members of a diverse lineage of ectomycorrhizal (ECM) fungi to examine functional diversity of ECM fungi with a shared evolutionary history.

Lactarius sanguifluus B21

Lactarius sanguifluus (Paulet:Fr.) Fr., belonging to the section Deliciosi of Lactarius and commonly known as the bloody milk cap, is an ectomycorrhizal fungal species in the family Russulaceae. It is a medium-sized to rather large species, associated exclusively with pines and exuding a vinaceous red latex when cut. The fruit bodies have convex, orange to grey-pinkish caps with a central depression and slightly incurved margins (when young). The pileus and stipe have a generally dull ochraceous orange appearance; the lamella color is very characteristic pale vinaceous, clearly more reddish than in L. deliciosus but much paler than in the entirely vinaceous colored Lactarius vinosus Quélet. Lactarius sanguifluus milk is scarce but typically blood-colored. The cap and the gills can turn greenish with age or when damaged. The stipe surface shows a few pinkish-vinaceous dimples or “scrobicules”. Microscopically, the rather small and mostly sub-globose, quite heavily ornamented spores are characteristic. The strain B21 used for sequencing was isolated originally in the Alps mountains from a conifer forest (mainly Pinus sylvestris) established on a brown calcic soil in the Hautes-Alpes department (La Baume, Le Devoluy city, at 1,450 m elevation) in September 2008. Genome sequencing and comparative study with other ectomycorrhizal clades in and out of Russulaceae would gain insights into its specific genomic and evolutionary features within Russulaceae, and also help understand the general genetic features shared by various ectomycorrhizal lineages.  

Biological material production: Dr. Nianwu TANG (KIB, Kunming).

Researchers who wish to publish analyses using data from unpublished CSP genomes are respectfully required to contact the PI (Francis Martin) and JGI to avoid potential conflicts on data use and coordinate other publications with the CSP master paper(s).

Reference:
Nuytinck J, Verbeken A. Morphology and taxonomy of the European species in Lactarius sect. Deliciosi (Russulales). Mycotaxon, 2005.