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Phenotypic plasticity of aposporous embryo sac development in Hieracium praealtum.

Juranić M, Johnson SD, Koltunow AM.

Plant Signal Behav. 2019;14(8):1622981. doi: 10.1080/15592324.2019.1622981. Epub 2019 Jun 4.


Asexual Female Gametogenesis Involves Contact with a Sexually-Fated Megaspore in Apomictic Hieracium.

Juranić M, Tucker MR, Schultz CJ, Shirley NJ, Taylor JM, Spriggs A, Johnson SD, Bulone V, Koltunow AM.

Plant Physiol. 2018 Jul;177(3):1027-1049. doi: 10.1104/pp.18.00342. Epub 2018 May 29.


A Genetic Screen for Impaired Systemic RNAi Highlights the Crucial Role of DICER-LIKE 2.

Taochy C, Gursanscky NR, Cao J, Fletcher SJ, Dressel U, Mitter N, Tucker MR, Koltunow AMG, Bowman JL, Vaucheret H, Carroll BJ.

Plant Physiol. 2017 Nov;175(3):1424-1437. doi: 10.1104/pp.17.01181. Epub 2017 Sep 19.


Genetic analyses of the inheritance and expressivity of autonomous endosperm formation in Hieracium with different modes of embryo sac and seed formation.

Henderson ST, Johnson SD, Eichmann J, Koltunow AMG.

Ann Bot. 2017 Apr 1;119(6):1001-1010. doi: 10.1093/aob/mcw262.


Generation of an integrated Hieracium genomic and transcriptomic resource enables exploration of small RNA pathways during apomixis initiation.

Rabiger DS, Taylor JM, Spriggs A, Hand ML, Henderson ST, Johnson SD, Oelkers K, Hrmova M, Saito K, Suzuki G, Mukai Y, Carroll BJ, Koltunow AM.

BMC Biol. 2016 Oct 6;14(1):86.


New observations on gametogenic development and reproductive experimental tools to support seed yield improvement in cowpea [Vigna unguiculata (L.) Walp].

Salinas-Gamboa R, Johnson SD, Sánchez-León N, Koltunow AM, Vielle-Calzada JP.

Plant Reprod. 2016 Jun;29(1-2):165-77. doi: 10.1007/s00497-015-0273-3. Epub 2016 Jan 4.


A Comparison of In Vitro and In Vivo Asexual Embryogenesis.

Hand ML, de Vries S, Koltunow AM.

Methods Mol Biol. 2016;1359:3-23. doi: 10.1007/978-1-4939-3061-6_1. Review.


Developmentally regulated HEART STOPPER, a mitochondrially targeted L18 ribosomal protein gene, is required for cell division, differentiation, and seed development in Arabidopsis.

Zhang H, Luo M, Day RC, Talbot MJ, Ivanova A, Ashton AR, Chaudhury AM, Macknight RC, Hrmova M, Koltunow AM.

J Exp Bot. 2015 Sep;66(19):5867-80. doi: 10.1093/jxb/erv296. Epub 2015 Jun 23.


A reference genetic linkage map of apomictic Hieracium species based on expressed markers derived from developing ovule transcripts.

Shirasawa K, Hand ML, Henderson ST, Okada T, Johnson SD, Taylor JM, Spriggs A, Siddons H, Hirakawa H, Isobe S, Tabata S, Koltunow AM.

Ann Bot. 2015 Mar;115(4):567-80. doi: 10.1093/aob/mcu249. Epub 2014 Dec 22.


Expression patterns and protein structure of a lipid transfer protein END1 from Arabidopsis.

Li M, Lopato S, Hrmova M, Pickering M, Shirley N, Koltunow AM, Langridge P.

Planta. 2014 Dec;240(6):1319-34. doi: 10.1007/s00425-014-2155-6. Epub 2014 Sep 10.


Evolution of apomixis loci in Pilosella and Hieracium (Asteraceae) inferred from the conservation of apomixis-linked markers in natural and experimental populations.

Hand ML, Vít P, Krahulcová A, Johnson SD, Oelkers K, Siddons H, Chrtek J Jr, Fehrer J, Koltunow AM.

Heredity (Edinb). 2015 Jan;114(1):17-26. doi: 10.1038/hdy.2014.61. Epub 2014 Jul 16.


The genetic control of apomixis: asexual seed formation.

Hand ML, Koltunow AM.

Genetics. 2014 Jun;197(2):441-50. doi: 10.1534/genetics.114.163105. Review.


Imprinting in rice: the role of DNA and histone methylation in modulating parent-of-origin specific expression and determining transcript start sites.

Du M, Luo M, Zhang R, Finnegan EJ, Koltunow AM.

Plant J. 2014 Jul;79(2):232-42. doi: 10.1111/tpj.12553. Epub 2014 Jun 20.


Traffic monitors at the cell periphery: the role of cell walls during early female reproductive cell differentiation in plants.

Tucker MR, Koltunow AM.

Curr Opin Plant Biol. 2014 Feb;17:137-45. doi: 10.1016/j.pbi.2013.11.015. Epub 2013 Dec 18. Review.


The LOSS OF APOMEIOSIS (LOA) locus in Hieracium praealtum can function independently of the associated large-scale repetitive chromosomal structure.

Kotani Y, Henderson ST, Suzuki G, Johnson SD, Okada T, Siddons H, Mukai Y, Koltunow AM.

New Phytol. 2014 Feb;201(3):973-81. doi: 10.1111/nph.12574. Epub 2013 Nov 1.


Enlarging cells initiating apomixis in Hieracium praealtum transition to an embryo sac program prior to entering mitosis.

Okada T, Hu Y, Tucker MR, Taylor JM, Johnson SD, Spriggs A, Tsuchiya T, Oelkers K, Rodrigues JC, Koltunow AM.

Plant Physiol. 2013 Sep;163(1):216-31. doi: 10.1104/pp.113.219485. Epub 2013 Jul 17.


Genetic separation of autonomous endosperm formation (AutE) from the two other components of apomixis in Hieracium.

Ogawa D, Johnson SD, Henderson ST, Koltunow AM.

Plant Reprod. 2013 Jun;26(2):113-23. doi: 10.1007/s00497-013-0214-y. Epub 2013 Mar 8.


Somatic small RNA pathways promote the mitotic events of megagametogenesis during female reproductive development in Arabidopsis.

Tucker MR, Okada T, Hu Y, Scholefield A, Taylor JM, Koltunow AM.

Development. 2012 Apr;139(8):1399-404. doi: 10.1242/dev.075390. Epub 2012 Mar 7.


Sporophytic ovule tissues modulate the initiation and progression of apomixis in Hieracium.

Tucker MR, Okada T, Johnson SD, Takaiwa F, Koltunow AM.

J Exp Bot. 2012 May;63(8):3229-41. doi: 10.1093/jxb/ers047. Epub 2012 Feb 29.


The female gametophyte.

Drews GN, Koltunow AM.

Arabidopsis Book. 2011;9:e0155. doi: 10.1199/tab.0155. Epub 2011 Dec 26.


Chromosomes carrying meiotic avoidance loci in three apomictic eudicot Hieracium subgenus Pilosella species share structural features with two monocot apomicts.

Okada T, Ito K, Johnson SD, Oelkers K, Suzuki G, Houben A, Mukai Y, Koltunow AM.

Plant Physiol. 2011 Nov;157(3):1327-41. doi: 10.1104/pp.111.181164. Epub 2011 Sep 6.


Molecular cloning and characterization of a linalool synthase from lemon myrtle.

Sugiura M, Ito S, Saito Y, Niwa Y, Koltunow AM, Sugimoto O, Sakai H.

Biosci Biotechnol Biochem. 2011;75(7):1245-8. Epub 2011 Jul 7.


Crystallization and preliminary X-ray analysis of geraniol dehydrogenase from Backhousia citriodora (lemon myrtle).

Saito Y, Ito S, Koltunow AM, Sakai H.

Acta Crystallogr Sect F Struct Biol Cryst Commun. 2011 Jun 1;67(Pt 6):665-7. doi: 10.1107/S1744309111006920. Epub 2011 May 25.


Sexual reproduction is the default mode in apomictic Hieracium subgenus Pilosella, in which two dominant loci function to enable apomixis.

Koltunow AM, Johnson SD, Rodrigues JC, Okada T, Hu Y, Tsuchiya T, Wilson S, Fletcher P, Ito K, Suzuki G, Mukai Y, Fehrer J, Bicknell RA.

Plant J. 2011 Jun;66(5):890-902. doi: 10.1111/j.1365-313X.2011.04556.x. Epub 2011 Apr 26.


Apomixis in hawkweed: Mendel's experimental nemesis.

Koltunow AM, Johnson SD, Okada T.

J Exp Bot. 2011 Mar;62(5):1699-707. doi: 10.1093/jxb/err011. Epub 2011 Feb 18. Review.


Polycomb group gene function in sexual and asexual seed development in angiosperms.

Rodrigues JC, Luo M, Berger F, Koltunow AM.

Sex Plant Reprod. 2010 Jun;23(2):123-33. doi: 10.1007/s00497-009-0131-2. Epub 2009 Dec 29. Review.


The Arabidopsis MYB5 transcription factor regulates mucilage synthesis, seed coat development, and trichome morphogenesis.

Li SF, Milliken ON, Pham H, Seyit R, Napoli R, Preston J, Koltunow AM, Parish RW.

Plant Cell. 2009 Jan;21(1):72-89. doi: 10.1105/tpc.108.063503. Epub 2009 Jan 9.


Sexual and apomictic seed formation in Hieracium requires the plant polycomb-group gene FERTILIZATION INDEPENDENT ENDOSPERM.

Rodrigues JC, Tucker MR, Johnson SD, Hrmova M, Koltunow AM.

Plant Cell. 2008 Sep;20(9):2372-86. doi: 10.1105/tpc.108.059287. Epub 2008 Sep 23.


Expression of aberrant forms of AUXIN RESPONSE FACTOR8 stimulates parthenocarpy in Arabidopsis and tomato.

Goetz M, Hooper LC, Johnson SD, Rodrigues JC, Vivian-Smith A, Koltunow AM.

Plant Physiol. 2007 Oct;145(2):351-66. Epub 2007 Aug 31.


AUXIN RESPONSE FACTOR8 is a negative regulator of fruit initiation in Arabidopsis.

Goetz M, Vivian-Smith A, Johnson SD, Koltunow AM.

Plant Cell. 2006 Aug;18(8):1873-86. Epub 2006 Jul 7.


Single-stranded DNA of Tomato leaf curl virus accumulates in the cytoplasm of phloem cells.

Rasheed MS, Selth LA, Koltunow AM, Randles JW, Rezaian MA.

Virology. 2006 Apr 25;348(1):120-32. Epub 2006 Feb 2.


Understanding apomixis: recent advances and remaining conundrums.

Bicknell RA, Koltunow AM.

Plant Cell. 2004;16 Suppl:S228-45. Epub 2004 May 6. Review. No abstract available.


Apomixis: a developmental perspective.

Koltunow AM, Grossniklaus U.

Annu Rev Plant Biol. 2003;54:547-74. Review.


Sexual and apomictic reproduction in Hieracium subgenus pilosella are closely interrelated developmental pathways.

Tucker MR, Araujo AC, Paech NA, Hecht V, Schmidt ED, Rossell JB, De Vries SC, Koltunow AM.

Plant Cell. 2003 Jul;15(7):1524-37.


Monogenic inheritance of apomixis in two Hieracium species with distinct developmental mechanisms.

Bicknell RA, Borst NK, Koltunow AM.

Heredity (Edinb). 2000 Feb;84 ( Pt 2):228-37.


Genetic analysis of growth-regulator-induced parthenocarpy in Arabidopsis.

Vivian-Smith A, Koltunow AM.

Plant Physiol. 1999 Oct;121(2):437-51.


Apomixis: Molecular Strategies for the Generation of Genetically Identical Seeds without Fertilization.

Koltunow AM, Bicknell RA, Chaudhury AM.

Plant Physiol. 1995 Aug;108(4):1345-1352. No abstract available.


Cell Differentiation and Morphogenesis Are Uncoupled in Arabidopsis raspberry Embryos.

Yadegari R, Paiva G, Laux T, Koltunow AM, Apuya N, Zimmerman JL, Fischer RL, Harada JJ, Goldberg RB.

Plant Cell. 1994 Dec;6(12):1713-1729.


Apomixis: Embryo Sacs and Embryos Formed without Meiosis or Fertilization in Ovules.

Koltunow AM.

Plant Cell. 1993 Oct;5(10):1425-1437. No abstract available.


Different Temporal and Spatial Gene Expression Patterns Occur during Anther Development.

Koltunow AM, Truettner J, Cox KH, Wallroth M, Goldberg RB.

Plant Cell. 1990 Dec;2(12):1201-1224.


A scheme for viroid classification.

Koltunow AM, Rezaian MA.

Intervirology. 1989;30(4):194-201.


Grapevine yellow speckle viroid: structural features of a new viroid group.

Koltunow AM, Rezaian MA.

Nucleic Acids Res. 1988 Feb 11;16(3):849-64.


Isolation of three viroids and a circular RNA from grapevines.

Rezaian MA, Koltunow AM, Krake LR.

J Gen Virol. 1988 Feb;69 ( Pt 2):413-22.


Promoter efficiency depends upon intragenic sequences.

Koltunow AM, Gregg K, Rogers GE.

Nucleic Acids Res. 1987 Oct 12;15(19):7795-807.

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