Temporal diversification in the genus Onosma (Boraginaceae) based on nuclear and plastid DNA sequences
نویسندگان
چکیده
The genus Onosma is a homogeneous taxon with high morphological variation and due to the similarities among taxa, there are many problems in their identification. Hence, systematically taxonomically, it considered difficult genus. In present study, we included large number of species throughout distribution range. Using nuclear (ITS) two plastids (rpl32-trnL(UAG) trnH-psbA) markers, analyzed evolutionary history, divergence time diversification patterns across tropical, subtropical temperate regions. Divergence estimates suggest early radiation s.l. happened at Oligocene-Miocene boundary. BAMM analyses indicate that best configuration one significant shift rates within Onosma: on branch leading clade comprised confined Iran.
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ژورنال
عنوان ژورنال: Genetika
سال: 2022
ISSN: ['0016-6758']
DOI: https://doi.org/10.2298/gensr2203135n