IMBIV   05474
INSTITUTO MULTIDISCIPLINARIO DE BIOLOGIA VEGETAL
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
A COMPARISON OF ALTITUDINAL DISTRIBUTION PATTERNS OF FUNGI IN BORNEO AND IN THE ANDES USING DNA METABARCODING
Autor/es:
SEMENOVA TATIANA; NOUHRA E.; GEML, J; PASTOR N.; LUIS MORGADO
Lugar:
Florianopolis
Reunión:
Congreso; VIII Congresso Brasileiro de Micologia; 2016
Resumen:
Montane forests harbor tremendous biodiversity and high rate of endemism and Provide critical water suppliesto human settlements and agricultural areas. Fungi represent one of the largest groups of living organisms andplay central roles in the Functioning of terrestrial ecosystems the plant symbionts, pathogens, and decomposers.Nevertheless, the vast majority of biodiversity studies have focused on vascular plants and animals and verylittle is known about the diversity and distribution patterns of fungi in tropical mountains. We carried inOctober DNA metabarcoding of ITS2 rDNA from soil samples taken along multiple altitudinal gradients in theYungas in NW Argentina and on Mount Kinabalu and in the Crocker Range in Malaysian Borneo. The sampledsites represent all the major altitudinal forest types from ca. 500 to 2500 m asl in the Yungas and from 300 to4000 m asl in Borneo. Our deep sequence date Suggests que fungal diversity is comparable across the differentzonal forest types and sampling regions. However, all statistical analyzes Suggested que fungal communitycomposition correlated strongly with forest type in BOTH sampling regions, with many rate showing strongpreference for A Certain elevation zone. Total fungal diversity does not Appear to decrease SignificantlyIncreasing with altitude, Which differ markedly from patterns Observed in plants and animals. Rather, differentfunctional groups prefer Certain forest altitudinal zones and such altitudinal turnover rate of apparently does notSubstantially Affect the total fungal richness in each zone. Several functional groups show similar distributionaltrends in Borneo and the Andes, eg, saprotrophic fungi are more diverse at lower elevations, while rootendophytes are dominant at higher altitudes. On the other hand, there are some differences in the distributionalpatterns of ectomycorrhizal fungi que May Be Explained by the differential availability of host trees. Wedocument strong correlations between fungal community composition and altitudinal vegetation zones intropical mountains, Likely Resulting from direct and indirect interactions, eg, symbiotic associations, substratesfor decomposing fungi, and altered environmental (microclimatic, edaphic etc.) factors. Our study offers anunprecedented insight into the high diversity and spatial distribution of fungi in the tropical and subtropicalmontane forests.