Table 1 Polyembryony test of citrus germplasm collection used in this study. M, P, and Mx indicate monoembryony, polyembryony, and mixed type, respectively

Kumquat

Fortunella crassifolia

YG

P

Lemon

C. limon

LM

P

Fortunella spp. ʻPuchimaruʼ

PM

M

C. limon ʻAllen-Newman Eurekaʼ

LM-AN

Mx

Pumello

C. grandis ʻDangyoojaʼ

DYJ

Mx

C. limon ʻFrost Nucellar Eurekaʼ

LM-FN

Mx

C. hassaku

PS

M

C. limon ʻLisbonʼ

RM

Mx

C. hassaku ʻBeni Hassakuʼ

HP

M

Lime

C. latifolia

Li–Cl

M

C. maxima

MD

M

Sour orange

C. aurantium ‘Jigak’

JI

P

C. maxima ʻBanbeiyuʼ

MB

M

C. obovoidea

KG

P

C. maxima ʻMato Buntanʼ

MM

M

C. sulcata

SBK

Mx

C. pseudogulgul

CH

M

C. taiwanica

JD

Mx

C. pseudogulgul ‘Sadoogam’

SD

M

Tangelo

C. natsudaidai

HK

Mx

C. tamurana

IH

M

C. natsudaidai ʻKawanonatsudaidaiʼ

GHK

MX

Citrus spp. ʻSuyouʼ

SU

M

C. natsudaidai ʻShinamanatsuʼ

SGH

Mx

Citrus hybrid ʻHarukaʼ

HRK

Mx

C. natsudaidai ʻTachibana Orangeʼ

LHO

Mx

Grapefruit

C. paradisi

GF

P

C. natsudaidai ʻWhanggumhagyulʼ

HH

Mx

C. paradisi ʻGolden Specialʼ

GS

Mx

Citrus hybrid ʻMinneolaʼ

MN

P

C. paradisi ʻP. Star Rubyʼ

SR

P

Citrus hybrid ʻNovaʼ

NV

P

Sweet orange

C. sinensis ʻFukuichi Navelʼ

BIN

P

Citrus hybrid ʻOrlandoʼ

OL

P

C. sinensis ʻHamlinʼ

HR

P

Citrus hybrid ʻSeminoleʼ

SN

P

C. sinensis ʻMorita Navelʼ

SJN

P

Citrus hybrid ʻSweetspringʼ

SS

P

C. sinensis ʻSanguinelliʼ

SG

P

Citrus spp. ‘Sunholt’

SHT

Mx

C. sinensis ʻSeike Navelʼ

CGN

P

Tangor

C. iyo ʻMiyauchiyokanʼ

GN

M

C. sinensis ʻShirayanagi Navelʼ

BU

P

C. iyo ʻOotaniiyokanʼ

DG

Mx

C. sinensis ʻSuzuki Navelʼ

YMN

P

Citrus hybrid ʻ56-423’

423

Mx

C. sinensis ʻTaroccoʼ

TR

P

Citrus hybrid ʻAkemiʼ

JK

Mx

C. sinensis ʻValencia Lateʼ

VL

P

Citrus hybrid ʻAmakusaʼ

CC

Mx

C. sinensis ʻYoshida Navelʼ

GV

P

Citrus hybrid ʻAriakeʼ

TG-YM

P

Mandarin

C. clementina

CL-02

M

Citrus hybrid ‘Ehime Kashi No. 28’

AH28

M

C. clementina ʻFina Sodeaʼ

CL-01

M

Citrus hybrid ʻHarehimeʼ

HM

M

C. erythrosa ‘Dingjeongkyul’

DJK

Mx

Citrus hybrid ʻHarumiʼ

HRM

P

C. kinokuni

KJ

M

Citrus hybrid ʻHinoyutakaʼ

BP

P

C. leiocarpa ‘Binkyul’

BN

Mx

Citrus hybrid ʻKiyomiʼ

CK

M

C. reticulata

BG

P

Citrus hybrid ʻOkitsu No. 46ʼ

HJ46

Mx

C. reticulata (Seedless line)

BG-seedless

P

Citrus hybrid ʻOkitsu No. 47ʼ

HJ47

M

C. reticulata ʻDaisyʼ

DSY

Mx

Citrus hybrid ‘S-1129’

S-1129

M

C. reticulata ʻDancyʼ

DS

P

Citrus hybrid ʻSatonokaoriʼ

STNK

Mx

C. reticulata ʻKousyunʼ

HC

P

Citrus hybrid ʻSeihouʼ

TG-CB

P

C. reticulata ʻNakano no.3ʼ

JY3

P

Citrus hybrid ʻSetokaʼ

SE

P

C. reticulata ʻPageʼ

PG

P

Citrus hybrid ʻShiranuhiʼ

BJ-01

P

C. reticulata ʻYosida Ponkanʼ

GJ

P

Citrus hybrid ʻTamamiʼ

TM

M

C. sunki ‘Jinkyul’

JG

P

Citrus hybrid ʻTsunokaoriʼ

JJH

P

C. tachibana ‘Hongkyul’

HG

Mx

Citrus hybrid ‘Wonkyoah-danbaiseong No.1’

WK1

M

C. tangerina ‘Pyunkyul’

PK

Mx

Papeda

C. sphaerocarpa ‘Kabosu’

CB

P

C. unshiu ʻAoshima 4 Gouʼ

M-CS

P

C. sphaerocarpa

DB

P

C. unshiu ‘Chungchon’

M-CC

P

C. sudachi

SDC

P

C. unshiu ‘Hyangmoongam’

M-HM

P

Citrus spp. ‘Sankyul’

SK

P

C. unshiu ʻImamura Unshiuʼ

M-GC

P

Papeda hybrid

C. junos ‘Yooja’

YJ

P

C. unshiu ʻKatayama Unshiuʼ

M-PS

P

C. junos ʻTadanishikiʼ

DJ

P

C. unshiu ʻKinokuni Unshiuʼ

M-KK

P

C. junos ʻSiboriʼ

CT-MD

P

Citrus spp. ‘Inchangkyul’

IC

P

C. junos ʻYamaneʼ

YS

P

Citrus hybrid ʻHayakaʼ

JH

P

C. junos ʻJaeraeʼ

YR

P

Citrus hybrid ʻMihocoreʼ

MH

P