Chromosome number evolution, biogeography and phylogenetic relationships in<i>Salvia</i>(Lamiaceae)

Ranjbar, Massoud; Pakatchi, Azam; Babataheri, Zahra

doi:10.1080/00837792.2015.1057982

Cited by 16 publications

(13 citation statements)

References 56 publications

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“…PacBio long reads (61.2 Gb) led to the assembly of 472.2 Mb sequences composed of 721 contigs with N50 of 3.05 Mb (Tables S1-S3). Bionano DLS optical mapping resulted in 597 super-scaffolds (N50 of 6.06 Mb), which were sorted using Hi-C data into seven pseudo-chromosomes (Figure S2A), consistent with microscopic counts of chromosomes (Patudin, 1975;Ranjbar et al, 2015). The assembled genome, with N50 of 63.8 Mb and 98.3% anchoring, reached high completeness (98.9%) based on BUSCO (benchmarking universal singlecopy ortholog) analysis (Table S2 and Figure 2A).…”

Section: Growth Habit-associated Distribution Of Diterpenoidsmentioning

confidence: 58%

The sage genome provides insight into the evolutionary dynamics of diterpene biosynthesis gene cluster in plants

Yang

Liu

et al. 2022

Cell Reports

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Section: Growth Habit-associated Distribution Of Diterpenoidsmentioning

confidence: 58%

The sage genome provides insight into the evolutionary dynamics of diterpene biosynthesis gene cluster in plants

Yang

Liu

et al. 2022

Cell Reports

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“…The variation in the size of most morphological features, including dimension of leaves, pedicle, nutlet and plant height, in the populations shows an unexpected departure from the predicted affects of environment on gene expression patterns. Meiotic behaviour helps to assess species potentials for reproductive success, genetic variability, biodiversity and survival in a new environment (Boff and Schifini-Wittmann 2002;Ranjbar et al , 2015. Morphological variation in Paracaryum populations seems not to be genetic because these morphotypes are found within the different environmental conditions, therefore environmental factors seems to be responsible for collective variation in Paracaryum populations.…”

Section: Discussionmentioning

confidence: 98%

Chromosome numbers and meiotic behaviour of the genusParacaryum(Boraginaceae) from Iran

Ranjbar

Nourallahi

2016

Webbia

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In the present study, meiotic chromosome numbers and meiotic behaviour of six populations belonging to four species growing in Iran, namely Paracaryum modestum (2n = 2x = 24), Paracaryum persicum subsp. macrocarpum (2n = 2x = 24), Paracaryum undulatum (2n = 2x = 24) and Paracaryum rugulosum (2n = 2x = 24) were determined. All chromosome counts are consistent with a proposed base number of x = 12. In addition, we report here the chromosome counts of P. modestum and P. undulatum for the first time. Almost all taxa studied here displayed regular bivalent pairing and chromosome segregation at meiosis. However, meiotic abnormalities observed included varied degree of fragmented chromosomes, laggards and bridge in anaphase I to telophase II, precocious division of centromeres, asynchronous nucleus, binucleus and cytomixis. We found a striking association between meiotic behaviour and habit morphology. In addition, P. modestum was originally described as a member of Paracaryum but was excluded from this genus and treated as Mattiastrum. However, this species is clearly similar to P. rugulosum and P. persicum and is treated here as a Paracaryum.

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“…In Lamiaceae, the Salvia is reported with the most primitive and highest base number, x=11 (Fujita 1970). But, the genus is also based on x= 6, 7, 8 and 9, of which x= 6 and 9 are derived from x=7 and 8 (Ranjbar et al 2015), possibly due to irregular cytological behavior and asymmetrical karyotype (Bhattacharya 1978). Hence, the chromosome number evolution is not a descending dysploidy (Enke and Gemeinholzer 2008), but a bidirectional process (Blöch et al 2009), which cause speciation and diversification (Stebbins 1971, Levin 2002.…”

Section: Meiotic Abnormalitiesmentioning

confidence: 99%

Male Meiotic Studies in 29 Species of Lamiaceae from Sirmaur District of Himachal Pradesh, India

Singh¹,

Gupta²,

Sharma

et al. 2018

CYTOLOGIA

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Lamiaceae is a requisite depository of many important medicinal herbs, distributed all over the world. The detailed meiotic studies, firstly are helpful in solving taxonomic and evolutionary enigmas and secondly provide best chemotypes for further exploration and conservatory purposes. Male meiosis in 29 species of 54 populations belonging to the 18 genera of Lamiaceae has been undertaken for the first time from Sirmaur district of Himachal Pradesh falling in Western Himalayas. Euploid cytotypes are reported in Ajuga parviflora (n=8x=32), Nepeta eryostachys (n=4x=18) and N. graciliflora (n=4x=18). Besides, B-chromosomes in previously known cytotypes of five species, A. bracteosa (n=32+0-2B), Leucas lanata (n=11+0-1B), Lycopus europeus (n=11+0-1B), Phlomis bracteosa (n=11+0-1B) and Vitex negundo (n= 16+0-1B), are reported for the first time. A substantial amount of meiotic abnormalities in the form of chromatin stickiness, cytomixis, chromatin bridges and laggards are reported in the presently worked out population that leads to the high variability in the microsporogenesis, pollen grain size heterogeneity and ultimately, reduce pollen viability. Only, the populations with B-chromosome had a low or negligible frequency of meiotic abnormalities.

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Chromosome number evolution, biogeography and phylogenetic relationships inSalvia(Lamiaceae)

Cited by 16 publications

References 56 publications

The sage genome provides insight into the evolutionary dynamics of diterpene biosynthesis gene cluster in plants

The sage genome provides insight into the evolutionary dynamics of diterpene biosynthesis gene cluster in plants

Chromosome numbers and meiotic behaviour of the genusParacaryum(Boraginaceae) from Iran

Male Meiotic Studies in 29 Species of Lamiaceae from Sirmaur District of Himachal Pradesh, India

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