Home > XIII International Pear Symposium > Studies on chromosome ploidy of Pyrus germplasm collection by flow cytometry

Articles

Studies on chromosome ploidy of Pyrus germplasm collection by flow cytometry

Article number

1303_12

Pages

79 – 84

Language

English

Abstract

Many karyotypes of pear cultivars and Pyrus germplasm were observed by Giemsa staining during the last 30 years.
Some triploid and tetraploid Pyrus germplasms were found and used to create novel polyploidy germplasms.
The chromosome number of 400 Pyrus germplasms were identified by flow cytometry (FCM) in this study to help to understand their diversity in chromosome level and provide evidence about the study of system evolution or polyploid breeding.
The results indicated that the chromosome numbers of known polyploid germplasms were the same as Giemsa staining and 15 new triploid germplasms were found.
In total, a simple, rapid and efficient method of FCM suitable for Pyrus ploidy identification was optimized and could be generally used to identify Pyrus polyploid and polyploid F₁ seedlings.

Publication

XIII International Pear Symposium

Authors

L.M. Tian, D. Qi, Y.F. Cao, X.G. Dong, Y. Zhang, H.L. Huo

Keywords

Pyrus, chromosome, ploidy, flow cytometry

Full text

https://doi.org/10.17660/ActaHortic.2021.1303.12

Groups involved

Online Articles (74)

1. Advances in phylogeny of the genus Pyrus and genetic relationships of Asian pear cultivars

Y. Teng

2. Pear cultivar and rootstock research in northeastern Europe: an overview

D. Kviklys

3. Pear cultivar testing in Belgium

J. Vercammen | A. Gomand | D. Bylemans

4. New Zealand interspecific pear breeding programme: progress on fruit quality targets

5. Update on CREA Centro di Ricerca Olivicoltura, Frutticoltura e Agrumicoltura pear breeding program

G. Caracciolo | S. Sirri | G. Baruzzi

6. Genetic diversity of the Spanish Pear Germplasm Collection assessed by SSRs

J.M. Alonso Segura | M.T. Espiau Ramírez | A. Pina Sobrino | M.J. Rubio-Cabetas | Á. Fernández i Martí

7. Newly bred pear cultivars in integrated fruit production systems in the Czech Republic

F. Paprstein | J. Sedlak

8. Breeding for fire blight resistance in an interspecific pear breeding programme

9. Analysis of leaf morphological diversity of pear (Pyrus L.) preserved in China

10. Morphological and anatomical leaf characteristics of some European and Asian pear cultivars

M. Fotirić Akšić | R. Cerović | R. Radošević | Č. Oparnica | M. Meland

11. Agro-morphological diversity of local and international accessions of the Spanish Pear Germplasm Bank in Zaragoza

M.T. Espiau Ramírez | J.M. Alonso Segura

12. Studies on chromosome ploidy of Pyrus germplasm collection by flow cytometry

13. Characterization of S-alleles of ‘SCS421 Carolina’ new self-fertile pear cultivar

I.D. Faoro | M.C. Hawerroth | T.L. Brancher | L. Bosetto

14. Pear accession fingerprinting through microsatellite markers in Uruguay

15. Protocol for in vitro shoot multiplication of ancient pear cultivars and landraces

J. Sedlak | F. Paprstein

16. Improved micropropagation protocol for pear rootstocks of the OH×F series and a new selection

A. Castillo | D. Cabrera | P. Rodríguez | R. Zoppolo

17. Use of temporary immersion bioreactors and solid culture medium in the in vitro propagation of pear rootstocks

18. New Asian pear cultivar developed in Brazil: ‘SCS421 Carolina’

I.D. Faoro

19. ‘CREA 194^pvr‘, the new pear cultivar released by CREA Centro di Ricerca Olivicoltura, Frutticoltura e Agrumicoltura

G. Baruzzi | S. Sirri | G. Caracciolo

20. Clonal selections of ‘Williams’ pear in Uruguay

M. Dini | J. Pisano | J. Soria

21. ‘Danhua’, a new hardy and free thinning fruit pear cultivar

22. Productive behavior of ‘Williams’ pear (Pyrus communis L.) grafted onto different rootstocks

D. Cabrera | P. Rodríguez | A. Uberti | R. Zoppolo

23. Physiological basis of pear pruning and light effects on fruit quality

S. Musacchi

24. Effects of tree density, tree shape, and rootstock on ‘Bosc’ pears

J. Lordan | P. Francescatto | T. Robinson

25. Yield and fruit quality of Japanese pear in “Joint V-shaped trellis”

T. Seki | K. Hirose | K. Shibata

26. Training system alternatives for ‘Rocha’ and ‘Santa Maria’ pear tree cultivars

27. A review of recent Pyrus, Cydonia and Amelanchier rootstock selections for high-density pear plantings

T.C. Einhorn

28. Performance of ‘Celina’, ‘Ingeborg’, and ‘Kristina’ pear cultivars on quince rootstocks growing in a Nordic climate

M. Meland | O. Frøynes | M. Fotirić Ak¿ić | F.M. Maas

29. Performance of ‘Rocha’ pears on three rootstocks planted in high-density

M.S. Pasa | A.F. Brighenti | M.N. Ciotta | B. Carra

30. New OH×F series and selection CAV03 rootstocks for Pyrus communis L. in southern Brazil

31. ‘Clapp’s Favorite’ as interstock on Pyrus calleryana rootstock increases ‘Packham’s Triumph’ fruit weight

32. Native embolism in ‘Rocha’ pear under different rootstocks and their relationship with plant vigor

33. Quantification of capillary water input to the root zone from shallow water table and determination of the associated ‘Bartlett’ pear water status

34. Metamitron, a photosynthesis inhibitor, is an effective thinner for ‘Bartlett’ pears

M. Curetti | M.D. Raffo

35. Early induction of pear drop using ethephon

W. Verjans | H. Schoofs | T. Deckers | D. Bylemans | S. Remy

36. Influence of climatic factors on productivity of ‘Williams’ pear trees on different rootstocks

37. The use of plant growth regulators to manipulate European pear crop load

K.I. Theron

38. Increase of fruit set and yield of ‘Rocha’ pear trees

39. Prediction of fruit drop of ‘Bartlett’ pear by a fruit growth rate model

M. Curetti | A.B. Rodríguez | D. Del Brio | P.D. Reeb

40. Use of plant growth regulators in ‘Clapp’s Favourite’ pears

B. de Castro | G.A.B. Marodin | P.H.G. Ferreira

41. Ethephon increases return bloom and yield of ‘Rocha’ pear trees

42. Bud break promoters following different chilling hour accumulation of ‘Hosui’ pear

43. Evaluation of different bud break promoters on ‘Williams’ (Pyrus communis L.) pear

44. Different rates of hydrogen cyanamide in bud break of ‘Rocha’ pear tree

45. Dormancy release in Asian ‘Hosui’ pear trees with the use of vegetable and mineral oils

R.V. Botelho | L.A. Biasi | A.J. Maia | L.C.B.M. Nedilha | T. Viencz

46. Gas exchanges, fruit growth and yield of ‘ANP-0534’, a blush pear selection, under different irrigation levels

L. Corelli Grappadelli | P. Losciale | J. Lopresti | I. Goodwin

47. Brown spot disease in ‘Rocha’ pear Portuguese orchards

P. Reis | C. Rego | M. Mota | T. Comporta | C.M. Oliveira

48. Studies on pear decline disease in Uruguay

D. Maeso | M.T. Federici | A. Martínez | M. Silvera | L. Goncalvez

49. Monitoring the occurrence of ‘Candidatus Phytoplasma pyri’ depending on the pear cultivars in the Czech Republic

T. Nečas | T. Kiss | J. Wolf | M. Göttingerová | I. Ondrášek

50. Etiology of pear flower bud necrosis in Uruguay

51. Response of Tuscan Pyrus communis L. cultivars to pear psylla artificial infestation

52. Effect of the ground cover management on Cacopsylla bidens (Šulc, 1907) populations in pear orchards

53. “Three spray treatment” technology for annual pest control in pear orchards of northern China

Q.Z. Liu | R. Rong | J. Wang | X.M. Zhao | P.H. Bai

54. Agroecology: a strategy for greater orchard sustainability

D. Granatstein

55. Nutrition status of ‘Cascatense’ pear trees under different nutrient sources for organic production

R.V. Botelho | A. Verlindo | L.A. Biasi | M.M.L. Müller

56. Pollination mix: honeybees and bumblebees as possible pollinators for Pyrus communis ‘Conference’

J. Smessaert | J. Torfs | O. Honnay | W. Keulemans

57. Pollinizer efficacy of several ‘Celina’ pollinizers in Norway, examined using microsatellite markers

M. Meland | O. Frøynes | B. Kalamujić-Stroil | L. Lasic | F. Gasi

58. Energy efficiency in a pear agroecosystem

M.C. Dussi | C. Fernández | Y. Machuca | L. Flores

59. Yield maps in tree fruit production: an automatic system for implementing precision agriculture

60. Yield maps in tree fruit production: analysis of spatial and temporal variability to establish homogeneous zones

61. Effectiveness of stationary and portable wind machines on temperature control under different frost conditions: a spatial analysis approach

V. Beyá-Marshall | J. Herrera | F. Santibáñez | T. Fichet

62. Preharvest factors affecting quality during ‘Rocha’ pear long-term storage

A. Bonora | H. Noronha | L. Corelli Grappadelli | C. Sánchez

63. Utilizing the I_AD index to predict ‘Rocha’ pear quality and physiological disorders after storage

R. Gomes | F. Silva | C.M. Oliveira

64. Looking for alternatives to control superficial scald in ‘Beurré d’Anjou’ pear

G. Calvo | A.P. Candan | C. Larrigaudière

65. Optimization of the alternatives to control superficial scald in ‘Beurré d’Anjou’ pear avoiding detrimental effects on fruit quality

G. Calvo | A.P. Candan | C. Larrigaudière

66. Antioxidant enzymes change in relation to superficial scald development in pear fruit during cold storage

M. Petriccione | G. Caracciolo | L. Zampella | F. Mastrobuoni | G. Baruzzi

67. The influence of harvest maturity on postharvest performance of new blush pear cultivars from Australia

68. Important postharvest pathogens of pear and their dynamics in plant residues in Dutch pear orchards

M. Wenneker | K.T.K. Pham | J. Köhl

69. Influence of rootstocks on nutritional composition of pear fruits

A. Lugaresi | A.L. Álvarez | P. Rodríguez | D. Cabrera | F. Ibáñez

70. Fruit size and yield efficiency of European pear cultivars in central Chile

G.H. Reginato | K. Mesa

71. ‘Williams’ pear (Pyrus communis L.) productivity and fruit quality when grafted onto different rootstocks

D. Cabrera | P. Rodríguez | A. Uberti | R. Zoppolo

72. The effects of light exposure on colour development in the blush pear ‘ANP-0534’

I. Visscher | M. Peavey | L. McClymont | I. Goodwin | S. Chandra

73. A comparative study between different sensors used to detect the lower oxygen level during dynamic controlled storage of ‘Conference’ pears

L. Torregrosa | G. Echeverria | J. Illa | J. García | J. Giné-Bordonaba

74. The scientific history of pear research in Brazil