Genetic diversity of the genus Terfezia (Pezizaceae, Pezizales): New species and new record from North Africa

Zitouni-Haouar, Fatima El-Houaria; Carlavilla, J. R.; Moreno, G.; Manjón, José Luis; Fortas, Zohra

doi:10.11646/phytotaxa.334.2.7

Cited by 10 publications

(13 citation statements)

References 41 publications

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“…This study was to characterize the diversity of Terfezia in North Africa. (Zitouni-Haouar et al 2018). The third macro-micromorphological and phylogenetic study was conducted on thirty-four Picoa taxa from this Algerian collection and several taxa from different countries located around the Mediterranean basin.…”

Section: Study Of Collected Samplesmentioning

confidence: 99%

“…Ascospore ornamentation was examined and photographed with a scanning electron microscopy. (Zitouni-Haouar et al 2018). The characteristics of spores and peridium have proven to be the most reliable micromorphological characteristics for identi cation of Terfezia species.…”

Section: Study Of Collected Samplesmentioning

confidence: 99%

“…Terfezia eliocrocae Bordallo, Morte & Honrubia (Bordallo et al 2013) reported for the rst time from North Africa (Zitouni-Haouar et al 2018) can be misidenti ed as T. claveryi but the large epispore reticulum and the pseudoparenchymatic peridium separates this species from the T. claveryi group; peridium thin (0.1 mm thick), smooth, light brownish yellow to brown mottled with black patches; asci eight spored; ascospores globose ( 15) 16-19 ( 20) μm broad including ornamentation with prominent irregular reticulum, the reticular wall is 0.5-1 μm thick.…”

Section: Distributionmentioning

confidence: 99%

“…In Algeria, three genera Terfezia, Tirmania and Picoa were collected in different bioclimatic regions near annual or perennial Helianthemum spp. (Chatin 1891 a, b;Maire, 1907;Duggar and Pinoy 1907;Fortas 1990;Fortas and Chevalier 1992;Cha et al 2004;Bradai et al 2014;Zitouni et al 2014Zitouni et al , 2015Zitouni et al , 2018. However, their development is irregular and their abundance depends on the distribution and intensity of rainfall, physicochemical composition of soil and host plants..This study focuses maintly on geographical distribution of desert tru es in Algeria, their diversity and their ecological requirements during growing seasons according to eld surveys carried out during thirty years in several bioclimatic zones.…”

Section: Introductionmentioning

confidence: 99%

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Ecology and distribution of desert Truffles in Algeria.

Fortas¹,

Dib-Bellahouel²,

Chevalier³

2021

Preprint

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This first study focuses on geographical distribution of desert truffles in Algeria, their diversity and their ecological requirements during growing seasons according to field surveys carried out during thirty years (1986–2016). Investigations in 61 productive sites of desert truffles spread over several bioclimatic areas revealed the presence of nine species to genera Terfezia, Tirmania and Picoa and their host plants Helianthemum spp. This study complements our earlier work on characterization of Terfezia and Picoa samples harvested throughout Algeria by macro-and micromorphological studies and by molecular phylogeny. Pedoclimatic factors were evaluated, host plants species were identified and mycorrhizal relationships of these fungi species under field conditions were examined. Results revealed that good natural yield desert truffles species is closely linked to intensity and distribution of rainfall, the temperature, frequency of storms during ascomata growing seasons. Nine desert truffles species grow on sandy loam soil and form with annual or perennial Helianthemum spp. endomycorrhizae on calcareous soil and also ectomycorrhizae without mantle on acidic soil in Helianthemum guttatum..

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Section: Study Of Collected Samplesmentioning

confidence: 99%

Section: Study Of Collected Samplesmentioning

confidence: 99%

Section: Distributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ecology and distribution of desert Truffles in Algeria.

Fortas¹,

Dib-Bellahouel²,

Chevalier³

2021

Preprint

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“…All the sequences were deposited in the NCBI GenBank and accession numbers were issued for all sequences start with MK478851 to MK910038 (Table 1). Many previous studies used the sequence of ITs region to identify truffles species [5,32].…”

Section: Morphology and Molecular Characterizationmentioning

confidence: 99%

Molecular identification and genetic diversity study of the Iraqi truffles

Aish¹,

Abdulmalek²,

Kareem³

et al. 2020

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The aim of this study is to investigate the molecular identification of the Iraqi truffles species and a better understanding of genetic diversity in the center of the truffles habitat. Thirty-two samples were collected from the Iraqi desert and local markets. Samples were chosen depending on the morphological diversity of the fruit body and sample collection area. Results of ITS region sequencing for the 32 samples showed two genuses Tirmania and Terfezia are the main dominant, 4 species of Tirmania pinoyi and 28 species of Terfezia claveryi. All species sequences were deposited in NCBI GenBank and all had accessions number. The neighbor-Joining method was used to generate a phylogenic tree to study the genetic diversity of the ITS sequences for the 32 Iraqi truffle samples. Results showed a high genetic diversity for the Iraqi truffles samples. The phylogenic study showed Iraqi truffles clustered with different groups as a clade with the reference sequences from other countries represent three continents Asia, Africa, and Europe. Also, we found in this study a unique cluster group for the Iraqi sequences for T. pinoyi and T. claveryi truffles cluster in one group and do not match with any reference sequences used in this study. This is a piece of strong evidence proofed the Iraqi habitat could be the origin of center diversity for the T. pinoyi and T. claveryi truffles.

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