Strain number NIES-2569  
Phylum Chlorophyta  
Class Chlorophyceae  
Scientific name Volvox ovalis Pocock ex Nozaki & Coleman  
Synonym  
Former name  
Common name Green alga ; Volvocine alga  
Locality (Date of collection) Texas, USA (before 2000)  
Latitude / Longitude  
Habitat (Isolation source) Freshwater (Water)  
History < Nozaki, Hisayoshi  
Isolator (Date of isolation) Cox, Elenor R. (before 2000)  
Identified by Nozaki, Hisayoshi  
State of strain Subculture; Unialgal; Clonal; Non-axenic  
Culture condition
(Preculture condition)
Medium:  AF-6 ;  VTAC  
Temperature:  22 C
Light intensity:  27-31 µmol photons/m2/sec, L/D cycle:  10L:14D
Duration:  42 D  
Gene information atpB ( AB592341 ) , psaA ( AB592339 ) , psaB ( AB592340 ) , psbC ( AB592338 ) , rbcL ( AB592342 )  
Cell size (min - max)  
Organization Colonial; Flagellate 
Characteristics Phototaxis ; Authentic strain  
Other strain no. Other strain no. : Volvox ovalis  
Remarks Fragile species to transportation stresses; Read and agree "How to order 4.1" 
Movie  
Related strain information
(Large number of orders and same genus or species)
Related strain information
(Whose relevance due to simultaneous purchases and other information is inferred by AI)
Strain number Scientific name Common name Habitat (Isolation source) Characteristics
NIES-731
Volvox zeikusii Green alga ; Volvocine alga   Freshwater Phototaxis ; Authentic strain (Nozaki et al. 2019)  
NIES-865
Volvox carteri Green alga ; Volvocine alga   Phototaxis ; Heterothallic ; Dioecious ; Oogamy ; Female  
NIES-867
Volvox gigas Green alga ; Volvocine alga   Phototaxis ; Heterothallic ; Dioecious ; Oogamy ; Female  
Related strain information
(Used in same reference)
Strain number Scientific name Common name Habitat (Isolation source) Characteristics
NIES-545
Volvulina steinii Green alga   Freshwater (Paddy soil) Phototaxis ; Heterothallic ; Mating type (−) ; Crosses with NIES-546  
NIES-1363
Pleodorina starrii Green alga   Freshwater (Lake water) Other water bloom ; Phototaxis ; Authentic strain (Nozaki et al. 2006) ; Heterothallic ; Anisogamous ; Male ; Genome decoded strain (Takahashi et al. 2003;( Smith et al. 2013)  
NIES-4128
Volvox dissipatrix Green alga ; Volvocine alga   Freshwater Phototaxis ; Monoecious  
NIES-564
Astrephomene perforata Green alga   Freshwater (Paddy soil) Phototaxis ; Authentic strain ; Heterothallic ; Isogamous ; Mating type (+) ; Crosses with NIES-565  
NIES-4432
Volvox longispiniferus Green alga ; Volvocine alga   Freshwater (Reservoir water) Phototaxis ; Homothallic ; Monoecious  
Reference
Nozaki, H. & Coleman, A. W. 2011 A new species of Volvox sect. Merrillosphaera (Volvocaceae, Chlorophyceae) from Texas. J. Phycol., 47, 673-679.
Keywords: molecular phylogeny; morphology; taxonomy; Volvox ovalis sp. nov.; Volvox sect. Merrillosphaera
Strain(s): 2569 
PubMed: 27021996
DOI: 10.1111/j.1529-8817.2011.00975.x

Hanschen, E. R., Herron, M. D., Wiens, J. J., Nozaki, H., Michod, R. E. 2018 Repeated evolution and reversibilityof self-fertilization in the volvocinegreen algae. Evolution, 72, 386-398.
Keywords: Haploid; phylogenetics; self-fertilization; sex; sexual reproduction; volvocine green algae
Strain(s): 289,  418,  456,  458,  460,  541,  543,  544,  545,  564,  566,  568,  569,  571,  572,  574,  578,  582,  653,  732,  851,  856,  857,  872,  875,  876,  877,  878,  880,  882,  883,  891,  892,  1038,  1362,  1711,  1713,  2457,  2569,  2738,  3382,  3388,  3780,  3782 
PubMed: 29134623
DOI: 10.1111/evo.13394

Hanschen, E. R., Herron, M. D., Wiens, J. J., Nozaki, H., Michod, R. E. 2018 Multicellularity drives the evolution of sexual traits. Am. Nat., 192, E93-E10.
Keywords: sex; volvocine green algae; multicellularity; ancestral state; reconstruction; anisogamy; sexual dimorphism
Strain(s): 289,  418,  421,  456,  458,  460,  522,  541,  543,  544,  545,  564,  566,  568,  569,  571,  572,  574,  578,  582,  653,  732,  751,  851,  856,  857,  872,  875,  876,  877,  878,  880,  882,  883,  891,  892,  1038,  1362,  1711,  1713,  2457,  2569,  2738,  3382,  3388,  3780,  3782 
PubMed: 30125231
DOI: 10.1086/698301

Hanschen, E. R., Davison, D. R., Ferris, P. J., Michod, R. E. 2018 On the rediscovery of Volvox perglobator (Volvocales, Chlorophyceae) and the evolution of outcrossing from self-fertilization. Evol. Ecol. Res., 19, 299-318.
Keywords: homothallism; phylogenetics; reversion; self-fertilization; sexual reproduction; volvocine green algae
Strain(s): 289,  421,  456,  458,  460,  474,  522,  541,  543,  544,  545,  564,  566,  568,  569,  571,  572,  574,  578,  582,  653,  732,  751,  851,  856,  872,  876,  877,  878,  880,  882,  1038,  1122,  1140,  1148,  1156,  1157,  1362,  1708,  1711,  1713,  1859,  2457,  2569,  2738,  3382,  3388,  3780,  3782,  3986,  4145,  4258,  4259,  4260 

Takahashi, K., Kawai-Toyooka, H., Ootsuki, R., Hamaji, T., Tsuchikane, Y., Sekimoto, H., Higashiyama, T., Nozaki, H. 2021 Three sex phenotypes in a haploid algal species give insights into the evolutionary transition to a self-compatible mating system. Evolution, 75, 2984-2993.
Keywords: Haploid species; inbreeding; life-history evolution; mating systems; reproductive isolation; sex
Strain(s): 456,  460,  541,  544,  731,  732,  872,  891,  892,  1362,  1363,  2569,  3382,  3383,  3780,  3782,  4066,  4068,  4479,  4480,  4481,  4482,  4483,  4484 
PubMed: 34250602
DOI: 10.1111/evo.14306

Lindsey, C. R., Rosenzweing, F., Herron, M. D. 2021 Phylotranscriptomics points to multiple independent origins of multicellularity and cellular differentiation in the volvocine algae. BMC Biol., 19, 182 (article ID).
Keywords: Phylotranscriptomics; Volvocine algae; Green algae; Phylogeny; Multicellularity
Strain(s): 418,  456,  458,  460,  541,  543,  544,  564,  566,  568,  572,  582,  653,  654,  717,  719,  720,  722,  725,  728,  730,  732,  736,  737,  851,  856,  863,  867,  868,  878,  882,  890,  893,  895,  1362,  1363,  2569,  2863,  3383,  4126,  4127,  4128 
DOI: 10.1101/2021.03.16.435725

Yamagishi, S., Yamamoto, K., Takahashi, K., Kawai-Toyooka, H., Suzuki, S., Matsuzaki, R., Yamaguchi, H., Kawachi, M., Higashiyama, T., Nozaki, H. 2024 Evolutionary analysis of MID homologs during the transition from homothallic species to heterothallic species in Volvox sect. Volvox (Chlorophyceae). Phycol. Res., 72, 46-55.
Keywords: male gamete; mating system; minus dominance gene (MID); molecular evolution; sex; sperm packet; volvocine green algae
Strain(s): 289,  456,  460,  541,  544,  545,  569,  572,  574,  582,  652,  653,  654,  732,  851,  852,  857,  872,  891,  892,  1362,  1363,  1708,  1710,  1859,  2457,  2569,  2735,  2736,  2740,  3382,  3383,  3780,  3782,  3786,  3874,  3984,  3986,  3988,  4021,  4025,  4336,  4432,  4535,  4536,  4537 
DOI: 10.1111/pre.12538

Ueki, N. & Wakabayashi, K. 2025 Multicellularity and increasing Reynolds number impact on the evolutionary shift in flash-induced ciliary response in Volvocales. BMC Ecol. Evol., 24, 119 (article ID).
Strain(s): 544,  545,  564,  571,  574,  576,  717,  728,  730,  731,  734,  867,  868,  882,  891,  1711,  2569,  3780,  3785,  4029,  4127,  4270,  4662 
PubMed: 39277710
DOI: 10.1186/s12862-024-02307-1

Ueki, N., Ngashima, M., Matsuzaki, R., Kobayashi, E., Misumi, O., Kawachi, M., Mahakham, W., Nozaki, H. 2026 Large green spheroids and taxonomy of Volvox chrysoprasus sp. nov. (Volvocaceae, Chlorophyta) from Japan. Phycologia, ,
Keywords: Molecular phylogeny; Sexual; spheroid; Taxonomy; Volvocine algae; Zygote morphology
Strain(s): 544,  731,  869,  2569,  4068,  4128,  4270 
DOI: 10.1080/00318884.2026.2723994

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