Two new species of Pustula (Albuginales, Oomycota) from Junggar Basin in China based on morphology and molecular data

Biao Xu, Young Joon Choi, Jia Ge Song, Shan He Zhang, Ping Gen Xi, Hyeon-Dong Shin, Zi de Jiang

Research output: Contribution to journalArticle

Abstract

Two new species of Pustula, P. cancriniae and P. xinyuanensis associated with Cancrinia discoidea and Convolvulus gortschakovii, respectively, are described based on morphological and molecular characters. They were placed in Pustula based on the following morphological characters: primary sporangia with an overall thickened wall, secondary sporangia with laterally thickened annulus, and oospores with reticulate wall ornamentation. In phylogenetic analysis inferred from the cox2 mtDNA region, P. xinyuanensis and P. cancriniae formed two independent lineages, apart from other known species of Pustula. Both morphological and molecular evidence confirmed the placement of the two species in Pustula and showed its relations with similar species in the genus. Moreover, this is the first record of Pustula on Convolvulaceae in the world.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalMycological Progress
DOIs
Publication statusAccepted/In press - 2018 Feb 2

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Keywords

  • Albuginaceae
  • Asteraceae
  • Convolvulaceae
  • Desert plant
  • White blister rusts

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Agricultural and Biological Sciences (miscellaneous)

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