Evolution of the climatic tolerance and postglacial range changes of the most primitive orchids (Apostasioideae) within Sundaland, Wallacea and Sahul

Abstract

The location of possible glacial refugia of six Apostasioideae representatives is estimated based on ecological niche modeling analysis. The distribution of their suitable niches during the last glacial maximum (LGM) is compared with their current potential and documented geographical ranges. The climatic factors limiting the studied species occurrences are evaluated and the niche overlap between the studied orchids is assessed and discussed. The predicted niche occupancy profiles and reconstruction of ancestral climatic tolerances suggest high level of phylogenetic niche conservatism within Apostasioideae.

Comparative Analysis of the Complete Plastomes of Apostasia wallichii and Neuwiedia singapureana (Apostasioideae) Reveals Different Evolutionary Dynamics of IR/SSC Boundary among Photosynthetic Orchids

“… Jersáková et al (2013) reported a variable genome size between Apostasia and Neuwiedia , with a nearly 16-fold range. Kolanowska et al (2016) assessed the evolution of cold tolerance among Apostasioideae species and proposed that their distribution was affected by climatic change. More recently, the genome sequence of Apostasia odorata has been sequenced ( Lin et al, 2017 ).…”

Phylogenetic climatic niche conservatism and evolution of climatic suitability in Neotropical Angraecinae (Vandeae, Orchidaceae) and their closest African relatives

“…The results of this study reveal that climatic niche diversification did not significantly influence the speciation of the Neotropical angrecoid orchids. This is the third study showing that PNC in Orchidaceae is very high ( Kolanowska & Szlachetko, 2014 ; Kolanowska et al, 2016 ) and that their diversity cannot be explained by niche differentiation. Our results confirm Wiens’s assumption about the low effect of niche modification in speciation.…”

“…15,000,000 generations were performed in two runs, discarding the first 25% as the burning in fraction and sampling every 1,000th tree. To estimate node ages function chronos in package “ape” was used as described previously ( Kolanowska et al, 2016 ). Lambda was set to 20 and ages were estimated using a semi-parametric method based on penalized likelihood where branch lengths indicate mean numbers of substitutions ( Sanderson, 2002 ; Paradis, Claude & Strimmer, 2004 ).…”

“… Gravendeel et al (2004) argue that the epiphytism rather than pollinator specialization is the reason for the high species richness in orchids. There are only a few studies on PNC and the variation of climatic suitability within the Orchidaceae ( Kolanowska et al, 2016 ) and most of the previous research on this aspect was on invasive species ( Kolanowska, 2013 ; Kolanowska & Konowalik, 2014 ).…”

From the past to the future – glacial refugia, current distribution patterns and future potential range changes of Diodonopsis (Orchidaceae) representatives

“…Kolanowska 2013b, 2015. Recently, first estimates of phylogenetic niche conservatism and evolution of climatic tolerances within Apostasioideae were published (Kolanowska et al 2016).…”