Evaluating the occurrence and conservation status of Sri Lankan species of Anacardiaceae

Ariyarathne, Menaka; Yakandawala, Deepthi; Samuel, Mary Rosabella; Wijesundara, Siril

doi:10.4038/cjs.v46i2.7430

Cited by 4 publications

(4 citation statements)

References 16 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sampling included ten species of four genera representing all the genera with endemics in the country, which also corresponds to three tribes out of four found in Sri Lanka. Collected locations of each species are given in Ariyarathne et al (2017). All the species investigated were included in separate and in combined phylogenetic analyses.…”

Section: Materials For Molecular Phylogeny and Chromosome Countsmentioning

confidence: 99%

“…All these species were investigated for the fi rst time at molecular and cytological level. Extensive fi eld investigations were carried out throughout the country and most of the species were found at the Kanneliya Man and Biosphere Reserve (Ariyarathne et al, 2017). Some species were declared as Critically Endangered Possibly Extinct [CR(PE)] due to the inability to locate in the wild (MOE, 2012).…”

Section: Statistics Of Data Matrixes and Phylogenetic Treesmentioning

confidence: 99%

See 1 more Smart Citation

Molecular phylogeny and chromosomal evolution of endemic species of Sri Lankan Anacardiaceae

Ariyarathne

Yakandawala

Barfuss

et al. 2020

J. Natn. Sci. Foundation Sri Lanka

View full text Add to dashboard Cite

Family Anacardiaceae comprises 70 genera and approximately 985 species distributed worldwide. Sri Lanka harbours 19 species in seven genera, among these 15 are endemics. This study focuses on regionally restricted endemics and native Anacardiaceae species, which have not been investigated before at molecular and cytological level. Nuclear rDNA ITS and plastid matK regions were sequenced for ten species, having nine endemics and one native, and incorporated into the existing sequence data for phylogenetic analyses. The topologies resulting from maximum parsimony, maximum likelihood and Bayesian inference are congruent. Family Anacardiaceae forms a monophyletic group having monophyletic subfamily Anacardioideae and paraphyletic subfamily Spondioideae. Tribes Anacardieae, Semecarpeae and Rhoeae form subclades within the major clade of Anacardioideae. All the endemic species occupy correct position in the molecular phylogeny as per the existing classifi cation except for Campnosperma zeylanica, which shows a close relationship to members of the subfamily Spondioideae. The position of non-native species Trichoscypha acuminata also remains unclear. Chromosome counts and karyograms were constructed for fi ve endemic species. The chromosome numbers incorporated in the tree range from 2n = 28-58. Species of tribe Rhoeae have the lowest chromosome number (2n = 24, 28, 30) while species of tribe Semecarpeae have the higher numbers (2n = 50, 52, 58). Chromosome numbers mapped on the phylogeny shows that dysploidy had played a role in the evolution of the species of the family Anacardiaceae in Sri Lanka.

show abstract

Section: Materials For Molecular Phylogeny and Chromosome Countsmentioning

confidence: 99%

Section: Statistics Of Data Matrixes and Phylogenetic Treesmentioning

confidence: 99%

Molecular phylogeny and chromosomal evolution of endemic species of Sri Lankan Anacardiaceae

Ariyarathne

Yakandawala

Barfuss

et al. 2020

J. Natn. Sci. Foundation Sri Lanka

View full text Add to dashboard Cite

show abstract

“…The dendrogram obtained showed four cultivated varieties of M. indica and the endemic M. zeylanica, that are all regular fruit bearers, grouped together. Based on the 2012 National Red List of Sri Lanka (MOE, 2012), M. zeylanica is categorized in the National conservation status 'Least Concerned' and as 'Vulnerable' according to Global Conservation status (Ariyarathne et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Response of endemic <em>Mangifera zeylanica</em> (Blume) Hook. f. fruit to common postharvest pathogens of cultivated mango (<em>Mangifera indica</em> L.) fruit in Sri Lanka

Karunanayake

Adikaram

2021

Ceylon J. Sci.

View full text Add to dashboard Cite

Two species of Mangifera are found in Sri Lanka, the cultivated Mangifera indica L. and the endemic M. zeylanica (Blume) Hook.f. [Et-amba (S)]. Mangifera indica is a climacteric fruit, susceptible to infection by many fungal pathogens, causing postharvest diseases at ripe stage. Among them, Colletotrichum spp. and Lasiodiplodia theobromae that cause anthracnose and stem-end rot disease respectively, are considered the most destructive postharvest pathogens in ripe mangoes. Harvested fruit of M. zeylanica also showed a climacteric pattern of respiration and the pulp was sweet to taste, with acceptable TSS value for mango fruit. The present study investigated the resistance or susceptibility of the fruit of endemic M. zeylanica to these two pathogens. Artificial inoculation of fruits with C. gloeosporioides and L. theobromae separately, produced anthracnose as well as stem-end rot symptoms respectively, showing that M. zeylanica fruits are susceptible to the pathogens. However, considering the pattern and the extent of disease development, M. zeylanica fruits can be considered moderately resistant to both pathogens. Alternaria sp., Pestalotiopsis sp., Lasiodiplodia theobromae, Curvularia sp. and Neofusicoccum sp. were frequently isolated from the pedicel and the stem-end region of healthy fruits of M. zeylanica at harvesting maturity. However, Colletotrichum species could not be isolated from either the pedicel or the stemend region of M. zeylanica. TLC-Cladosporium bioassay of peel extract of the unripe M. zeylanica fruit resulted in a large inhibition zone at R f 0.00 which corresponded with antifungal gallotannins contributing to the constitutive defences of M. indica fruit against invading pathogens.

show abstract

“…Sri Lanka together with the Western Ghats in Southern India, is a one of the currently recognised, thirty five global hotspots for biological diversity (Ariyarathne et al, 2017). These 35 hotspots define regions where 43% of vertebrates (including 60% of threatened mammals and birds), and 80% of all threatened amphibians (Mittermeier et al, 2011;Williams et al, 2011) survive within habitat covering just 17.3% of the Earth's surface.…”

Section: Introductionmentioning

confidence: 99%

Floristic Survey of Meethirigala Forest Reserve in Gampaha District

Kalubowila¹,

Singhakumara²,

Rajathewa³

2020

JTFE

View full text Add to dashboard Cite

Meethirigala forest reserve consists of approximately 384 ha. It is the largest forest reserve in Gampaha District managed by the Forest Department. It has different topographic positions such as ridges, midslopes and valley areas close to the Kelani River. The present study was conducted to enumerate plant species found in all three topographic positions of the reserve. Plots were demarcated purposively to sample woody perennials equal or greater than 5 cm dbh (diameter at breast height) in 18 plots (5×100 m, rectangular shape). Seedlings greater than 1 m tall were sampled in 18 plots (5×5 m). Shannon diversity indices were calculated to compare dominance of particular species in different topographic positions. A total of 360 individuals of woody perennials belonging to 73 species in ridge, 368 individuals of woody perennials belonging to 100 species in midslope and 272 individuals of woody perennials belonging to 69 species in valley were recorded. And 132, 123 and 100 individuals of seedlings were enumerated in ridge, midslope and valley respectively. In ridge 58 generas, 28 families, in midslope 83 generas, 35 families and, in valley 68 generas, 29 families were observed. 28 species were found in all three different altitudes of the reserve. Forest species in study sites gave a total of 138 plant species belonging to 113 tree species, 11 climber species, 14 shrub species, 109 generas and 46 families. Of this total 138 species, 34 (25%) species are endemic to Sri Lanka. Highest endemism was recorded in the ridge (41.6%). Stratification of the ridge showed a very similar pattern to a Dipterocarp forest type. Highest diversity was recorded in midslope (1.7290) and lowest recorded in ridge (1.5626) of the forest. 18 threatened species were observed (3-Endangered and 15-vulnerable species). As a conclusion, Meethirigala forest reserve can be considered as an important refuge for wet zone forest species.

show abstract

Evaluating the occurrence and conservation status of Sri Lankan species of Anacardiaceae

Cited by 4 publications

References 16 publications

Molecular phylogeny and chromosomal evolution of endemic species of Sri Lankan Anacardiaceae

Molecular phylogeny and chromosomal evolution of endemic species of Sri Lankan Anacardiaceae

Response of endemic <em>Mangifera zeylanica</em> (Blume) Hook. f. fruit to common postharvest pathogens of cultivated mango (<em>Mangifera indica</em> L.) fruit in Sri Lanka

Floristic Survey of Meethirigala Forest Reserve in Gampaha District

Contact Info

Product

Resources

About