

FOLLOWUS
1.School of Life Science, Shanxi Key Laboratory for Research and Development of Regional Plants, Shanxi University, Taiyuan 030006, China
2.Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Science, Baltimore, MD 21202, USA
xiesl@sxu.edu.cn
Received:14 July 2024,
Accepted:19 December 2024,
Online First:14 April 2025,
Published:01 January 2026
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GUO Weinan,NAN Fangru,HE Zhongshi,et al.Multi-locus phylogeny, morphological evolution and biogeography of Batrachospermaceae (Rhodophyta) based on multiple genetic sequences[J].Journal of Oceanology and Limnology,2026,44(01):307-321.
GUO Weinan,NAN Fangru,HE Zhongshi,et al.Multi-locus phylogeny, morphological evolution and biogeography of Batrachospermaceae (Rhodophyta) based on multiple genetic sequences[J].Journal of Oceanology and Limnology,2026,44(01):307-321. DOI: 10.1007/s00343-025-4190-5.
This study presents a comprehensive phylogenetic analysis on Batrachospermaceae based on key taxonomic identifiers (
rbc
L
psa
A
psb
A
and COI-5P) from some genera. To systematically explore the phylogenetic relationships and taxonomy within Batrachospermaceae
we integrated molecular and morphological data
and explored the phylogeny
character evolution
and ancestral geographical origin and provided a theoretical support for the classification and geographic origination of Batrachospermaceae. Our findings reveal distinct relationships within the phylogenetic tree. Notably
10 genera (
Sirodotia
Batrachospermum
Tuomeya
Volatus
Lympha
Nothocladus
Torularia
Sheathia
Nocturama
and
Petrohua
) are closely associated in the
rbc
L phylogenetic tree. Additionally
four genera (
Kumanoa
Hoefkenia
Notohesperus
and
Virescentia
) exhibit high support ratios
indicating their close interrelations. Other genera
inc
luding
Paludicola
Visia
Acarposporophycos
Macrosporophycos
Visioidea
Balliopsis
and
Psilosiphon
exhibit clustering traits. Furthermore
the multigene sequences provide a robust support for
Montagnia
that forms a monophyletic group. Ancestral reconstruction of morphological characters identifies nine primitive character states
including whorl
fascicle length
cortical cells
secondary fascicles
the shape of carpogonical branch
spermatangia
carposporophyte
carpogonium and trichogyne
with
Visia
likely representing ancestral traits in Batrachospermaceae. Furthermore
geographical origin maps suggest a potential common ancestral of Batrachospermaceae origin in the American continent. Additional to conventional analyses
including evolutionary and ancestral reconstruction investigations into key morphological characters
we attempt to reconstruct the biogeography within the Batrachospermaceae
thus contributing to a nuanced understanding of its origin.
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