Topic
Capurodendron
About: Capurodendron is a research topic. Over the lifetime, 4 publications have been published within this topic receiving 87 citations.
Papers
TL;DR: All Malagasy accessions of Capurodendron, Tsebona, and a new species are grouped in another well-supported clade of subfamily Sapotoideae, and Isonandreae, distributed in the Indo-Pacific, is for the first time resolved as monophy- letic and sister to Sapoteae.
Abstract: Phylogenetic relationships of the two Malagasy Sapotaceae endemic genera Capurodendron and Tsebona have been unclear until now. Recent collections from Madagascar, as well as a better representation of the tribe Isonandreae, altogether 95 terminals, were used to estimate a phylogeny of subfamily Sapotoideae. We analysed sequences of nrDNA (ITS) and cpDNA (trnH-psbA) with Bayesian inference and parsimony jackknifing. As in previous analyses, Sapoteae and Sideroxyleae are recovered monophyletic. In addition, Isonandreae, distributed in the Indo-Pacific, is for the first time resolved as monophy- letic and sister to Sapoteae. All Malagasy accessions of Capurodendron, Tsebona, and a new species are grouped in another well-supported clade. This clade is accommodated in a new tribe Tseboneae characterized by caducous stipules, 5-merous flowers with quincuncial sepals, contorted aestivation of corolla lobes, absence of corolla appendages, one or three stamens opposite each corolla lobe, villous staminodes, seeds with an adaxial scar and plano-convex cotyledons, lacking endosperm. The new species is described in the new genus Bemangidia (B. lowryi) because it has a unique leaf venation for the tribe and combines different morphological features from Capurodendron and Tsebona. All three genera are well-supported monophy- letic groups. Bemangidia lowryi is threatened with extinction due to extensive ongoing forest destruction and is assigned a preliminary conservation status of Critically Endangered.
113 citations
TL;DR: The phylogeny of the Sapotaceae was investigated by DNA sequence analysis of the chloroplast gene ndhF and a discussion of diagnostic characters in the sapotaceae from a cladistic perspective is presented.
Abstract: The phylogeny of the Sapotaceae was investigated by DNA sequence analysis of the chloroplast gene ndhF. Three or possibly four main evolutionary lineages were identified. Sarcosperma is the sister group of all other Sapotaceae, which together form two strongly supported monophyletic groups. One large clade with strong support is comprised of the tribes Isonandreae, Mimusopeae, and Sideroxyleae, and also includes the genus Capurodendron of tribe Chrysophylleae. The second large clade with strong support is formed by the tribes Chrysophylleae and Omphalocarpeae, as well as Diploon of tribe Sideroxyleae. Weak support was found for a position of the genus Xantolis as sister to the Chrysophylleae‐Omphalocarpeae, but this genus could equally well constitute a separate evolutionary lineage. The relationships between many of the genera within each of the larger clades are still unclear, but based on the results, a discussion of diagnostic characters in the Sapotaceae from a cladistic perspective is presented.
78 citations
TL;DR: Three new species in the Malagasy endemic genus Capurodendron Aubrév (Sapotaceae) are described and illustrated and all are preliminary assessed as “Critically Endangered”.
Abstract: Gautier, L. & Y. Naciri (2018). Three Critically Endangered new species of Capurodendron (Sapotaceae) from Madagascar. Candollea 73: 121–129. In English, English and French abstracts. DOI: http://dx.doi.org/10.15553/c2018v731a13Three new species in the Malagasy endemic genus Capurodendron Aubrev. (Sapotaceae) are described and illustrated. Their preliminary conservation status according to the criteria of IUCN is provided. Capurodendron schatzii L. Gaut. & Naciri is a large-laeved evergreen tree from the humid forest east of the Masoala peninsula. The new species is compared with the other large-leaved species of the genus. Capurodendron sahafariense L. Gaut. & Naciri is a deciduous small-leaved tree of medium size from dry forests on sandy soils in the extreme North. It shares with Capurodendron costatum Aubrev. a 5-ridged fruit, but differs by its much smaller leaves. As it name implies, Capurodendron nanophyllum L. Gaut. & Naciri has the smallest leaves encountered in the genus. It is a shrub found near Tsihombe in the extreme south, the driest part of the island, within the range of the variable Capurodendron androyense Aubrev. The differences between the two taxa are highlighted. All three species are preliminary assessed as “Critically Endangered”.
58 citations
TL;DR: In this article, the authors used target capture and NGS to identify 531 monocopy genes and 227 Short Tandem Repeats (STR) markers and tested them on Sapotaceae using two genome skimming samples.
22 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2018 | 1 |
| 2013 | 1 |
| 2003 | 1 |