Phylogenomic and population genomic analyses reveal the spatial–temporal dynamics of diversification of the Nigella arvensis complex (Ranunculaceae) in the Aegean archipelago

Jian, Jinjing; Yuan, Yi; Vilatersana, Roser; Li, Linfeng; Wang, Yuguo; Zhang, Wenju; Song, Zhiping; Kong, Hongzhi; Peter Comes, Hans; Yang, Ji

doi:10.1016/j.ympev.2023.107908

Cited by 2 publications

(2 citation statements)

References 68 publications

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“…The result was consistent with the study of Quercus pacifica [ 41 ] and Eriogonum arborescens [ 43 ] in California Channel Islands, where historical gene flow attenuated the population differentiation caused by strait isolation. On the contrary, the genetic differentiation would be high if the historical gene flow was very low (Nm = 0.000–0.004), for example, Amentotaxus argotaenia on Taiwan island [ 44 ] and Nigella species in eastern Aegean [ 45 ].…”

Section: Discussionmentioning

confidence: 99%

Genetic Differentiation and Relationship among Castanopsis chinensis, C. qiongbeiensis, and C. glabrifolia (Fagaceae) as Revealed by Nuclear SSR Markers

Wu,

Yang,

Wen

et al. 2024

Plants

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Castanopsis chinensis (Spreng.) Hance is widespread in the subtropical forests of China. Castanopsis qiongbeiensis G.A. Fu and Castanopsis glabrifolia J. Q. Li & Li Chen are limited to the coastal beaches of Wenchang county in the northeast of Hainan Island, and have similar morphological characteristics to C. chinensis. It is supposed that C. qiongbeiensis and C. glabrifolia are closely related to C. chinensis. In the present study, the genetic differentiation, gene flow, and genetic relationship of C. chinensis, C. qiongbeiensis, and C. glabrifolia were investigated by using 15 nuclear microsatellite markers; a total of 308 individuals from 17 populations were sampled in the three species. The allelic variation of nuclear microsatellites revealed moderate but significant genetic differentiation (FCT = 0.076) among C. chinensis, C. qiongbeiensis, and C. glabrifolia, and genetic differentiation between C. chinensis and C. glabrifolia was larger than that between C. chinensis and C. qiongbeiensis. Demographic simulations revealed unidirectional gene flow from C. chinensis to C. glabrifolia and C. qiongbeiensis, which highlight dispersal from mainland to island. The isolation effect of Qiongzhou Strait increased the genetic differentiation of species on both sides of the strait; however, the differentiation was diminished by gene flow that occurred during the historical period when Hainan Island was connected to mainland China. Our results supported the argument that C. glabrifolia should be considered an independent species and argued that C. qiongbeiensis should be regarded as an incipient species and independent conservation unit.

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Section: Discussionmentioning

confidence: 99%

Genetic Differentiation and Relationship among Castanopsis chinensis, C. qiongbeiensis, and C. glabrifolia (Fagaceae) as Revealed by Nuclear SSR Markers

Wu,

Yang,

Wen

et al. 2024

Plants

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“…The taxa of the Nigelleae tribe primarily thrive in the Mediterranean climatic area. In this context, several researches have aimed to unravel the biogeography and speciation of short-lived plant groups, including Nigella and Garidella in the Mediterranean Basin (Bittkau and Comes 2009;Jian et al 2023). One notable study by Bittkau and Comes (2009), demonstrated that the genus Garidella is monophyletic, and Nigella was nested as its putative sister, with low support value in the phylogenetic tree and it is diversified from a single ancestral group in recent times.…”

Section: Discussionmentioning

confidence: 99%

Chromosome characterization and genome size in <i>Nigella</i> and <i>Garidella</i> species (Ranunculaceae) with their taxonomic implications

Aydın,

Eroğlu,

Şenova

et al. 2024

CYTOLOGIA

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Phylogenomic and population genomic analyses reveal the spatial–temporal dynamics of diversification of the Nigella arvensis complex (Ranunculaceae) in the Aegean archipelago

Cited by 2 publications

References 68 publications

Genetic Differentiation and Relationship among Castanopsis chinensis, C. qiongbeiensis, and C. glabrifolia (Fagaceae) as Revealed by Nuclear SSR Markers

Genetic Differentiation and Relationship among Castanopsis chinensis, C. qiongbeiensis, and C. glabrifolia (Fagaceae) as Revealed by Nuclear SSR Markers

Chromosome characterization and genome size in <i>Nigella</i> and <i>Garidella</i> species (Ranunculaceae) with their taxonomic implications

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